Takashi KOMINEAssociate Professor
■Researcher basic information
Organization
- College of Engineering Department of Electrical and Electronic Systems Engineering
- Graduate School of Science and Engineering（Master's Program） Major in Electrical and Electronic Systems Engineering
- Graduate School of Science and Engineerin（Doctoral Program） Major in Complex Systems Science
- Faculty of Applied Science and Engineering Domain of Electrical and Electronic Systyems Engineering
Research Areas
- Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment, Electron Devices and Apparatus Engineering
- Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electric/electronic material engineering, Electronic and Electric Materials Engineering
- Natural sciences, Magnetism, superconductivity, and strongly correlated systems, "Solid‐State Physics II (Magnetism, Metal Physics and Cryogenics)"
- Nanotechnology/Materials, Functional solid-state chemistry, "Function, Properties and Materials in Chemistry"
Research Keyword
Educational Background
Career
- Apr. 2007, Associate professor, Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University
- Apr. 2006 - Mar. 2007, Associate Professor, Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University
- Apr. 2003 - Mar. 2006, Assistant, Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University
- Apr. 2001 - Mar. 2003, NEDO fellow
External link
■Research activity information
Award
- Dec. 2024, Student presentation award, Influence of free layer shape on vortex dynamics in vortex spin torque oscillator, Magnetics Society of Japan
- Sep. 2024, MSJ Distinguished Paper Award, Microwave Transmission Theory for On-Chip Ultrastrong-Coupled Magnon-Polariton in Dynamical Inductors, The Magnetic Society of Japan
Takahiro Chiba;Takashi Komine;Tomosuke Aono - Jun. 2024, 第17回日本熱電学会優秀論文賞, 日本熱電学会
村田 正行;鈴木 真理;青山 佳代;長瀬 和夫;大島 博典;山本 淳;長谷川 靖洋;小峰 啓史 - Sep. 2016, Poster Award, The 77th JSAP Autumn Meeting, 2016, Fabrication of Ni78Fe22/Alq3/Ni78Fe22 nanoscale junctions utilizing thin-film edges and their structural and electrical properties
T. Misawa;S. Mori;T. Komine;N. Hoshino;T. Akutagawa;M. Fujioka;H. Kaiju;J. Nishii
Japan society - 01 Jul. 2015, The ITS outstanding research paper award
M. Murata;A. Yamamoto;Y. Hasegawa;T. Komine
International society - Oct. 2012, 学術奨励賞(内山賞), ECC媒体における磁気クラスタサイズの磁場印加方向依存性, Magn. Soc. Jpn.
山口義明;川田裕介;小峰啓史;杉田龍二
Japan society - Nov. 2010, 第58回電気科学技術奨励賞, 磁気転写法によるハードディスクへのサーボ信号超高速記録技術の開発, 電気科学技術奨励会
杉田龍二,小峰啓史
Publisher - Nov. 2009, 優秀講演賞, UV-NIL を用いたナノパターンの作製検討, 電気学会東京支部茨城支所発表会
松本剛,池谷政洋,市毛雄基,高橋光太,東川玲子,櫻井淳光, 小峰啓史,杉田龍二
Japan society - Sep. 2009, 茨城大学学長表彰(奨励賞), 非一様電流による磁壁駆動のマイクロマグネティックシミュレーション, 茨城大学
Others - Sep. 2008, 学術奨励賞(内山賞), Feasibility of Perpendicular Magnetic Duplication at 1 Tbit/inch2, Magn. Soc. Jpn.
T. Murata;Y. Sakaguchi;A. Izumi;T. Komine and R. Sugita - Sep. 2008, 学術奨励賞(内山賞), Micromagnetic Simulation of Current-Induced Domain Wall Motion under a Non-uniform Current Distribution, 日本磁気学会
T. Komine;H. Murakami;T. Nagayama and R. Sugita - Dec. 2007, 優秀講演賞, 高飽和磁化を有する垂直磁気異方性膜の作製, 電気学会東京支部茨城支所発表会
在原康貴,小峰啓史,杉田龍二
Japan society
Paper
- Chaotic magnetization dynamics in magnetic Duffing oscillator
Ryo Tatsumi; Takahiro Chiba; Takashi Komine; Hiroaki Matsueda
Phys. Rev. E, Jun. 2025, [Reviewed] - Chaotic Vortex Dynamics in Circular Magnetic Nanodisk with Double Disk Structure Induced by AC Magnetic Field
K. Horizumi; T. Chiba; T. Komine, Corresponding, The Magnetics Society of Japan
Journal of the Magnetics Society of Japan, 2025, [Reviewed] - Numerical analysis of vortex spin torque oscillator with modified free layer
Kota Horizumi; Takahiro Chiba; Takashi Komine, Corresponding, Institute of Electrical and Electronics Engineers (IEEE)
IEEE Transactions on Magnetics, 2025, [Reviewed] - 〔Major achievements〕Composition dependence of anomalous Nernst effect in amorphous TbFeCo thin films with perpendicular magnetic anisotropy
R. Ando; and T. Komine, Last, J. Appl. Phys. 135, 093906 (2024)
J. Appl. Phys., 04 Mar. 2024, [Reviewed] - Microwave Transmission Theory for On-Chip Ultrastrong-Coupled Magnon-Polariton in Dynamical Inductors
T. Chiba; T. Komine; and T. Aono
J. Magn. Soc. Jpn., 01 Mar. 2024, [Reviewed] - 〔Major achievements〕Magnetic printing characteristics of burst signals by using double magnet master media
T. Komine, Lead, AIP
AIP advances, 01 Mar. 2024, [Reviewed] - 〔Major achievements〕Fully micromagnetic analysis of voltage-controlled magnetization switching in magnetic-topological-insulator-based devices
T. Komine; and T. Chiba, Lead, AIP
AIP advances, 16 Feb. 2024, [Reviewed] - Ultrastrong-coupled magnon–polariton in a dynamical inductor based on magnetic-insulator/topological-insulator bilayers
Takahiro Chiba; Takashi Komine; Tomosuke Aono, We theoretically study a magnon–polariton in a dynamical inductor consisting of a coil and a bilayer of ferromagnetic insulator (FI) with perpendicular magnetization and a three-dimensional topological insulator (TI). Taking into account the coherent magnetic-dipole (Zeeman) interaction as well as the dissipative spin pumping effect on the FI/TI interface, we formulate a dynamical permeability of the FI/TI bilayer and calculate a corresponding electric admittance of an RLC-circuit. As a result, the spin pumping gives rise to a competitive effect on the modes hybridization, whereas a huge level repulsion due to the coherent coupling, which reaches the ultrastrong coupling regime, is found at room temperature for realistic parameter sets. Our work may open a new avenue for designing on-chip microwave devices based on a magnon–polariton in the RLC-circuit., AIP Publishing
Applied Physics Letters, 01 Jan. 2024, [Reviewed] - Bi-Sbにおける磁場中熱電物性の同一試料測定と試料形状の影響
村田正行; 鈴木真理; 青山佳代; 長瀬和夫; 大島博典; 山本淳; 長谷川靖洋; 小峰啓史, Last
日本熱電学会誌, 06 Oct. 2023, [Reviewed] - Numerical analysis of voltage-controlled magnetization switching operation in magnetic-topological-insulator-based devices
Takashi Komine; Takahiro Chiba, Lead, We theoretically investigate influences of electronic circuit delay, noise, and temperature on write-error-rate (WER) in voltage-controlled magnetization switching operation of a magnetic-topological-insulator-based device by means of the micromagnetic simulation. This device realizes magnetization switching via spin–orbit torque (SOT) and voltage-controlled magnetic anisotropy (VCMA), which originate from the 2D-Dirac electronic structure. We reveal that the device operation is extremely robust against circuit delay and signal-to-noise ratio. We demonstrate that the WER on the order of ∼10−4 or below is achieved around room temperature due to steep change in VCMA. Also, we show that the larger SOT improves thermal stability factor. This study provides a next perspective for developing voltage-driven spintronic devices with ultra-low power consumption., AIP Publishing
Applied Physics Letters, 04 Sep. 2023, [Reviewed] - Write-error rate estimation of voltage-controlled magnetization switching in a magnetic-topological-insulator-based device
Takashi Komine; Shimon Watahiki; Takahiro Chiba, Corresponding, IEEE
2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers), May 2023, [Reviewed] - Temperature profile of the Thomson-effect-induced heat release/absorption in junctionless single conductors
Takahiro Chiba; Ryo Iguchi; Takashi Komine; Yasuhiro Hasegawa; Ken-ichi Uchida, Abstract
The Thomson effect induces heat release or absorption under the simultaneous application of a charge current and a temperature gradient to conductors. Here, we theoretically investigate the temperature profile due to the Thomson-effect-induced heat release/absorption in junctionless single conductors which can be a simple temperature modulator. We also perform analysis of the temperature profile for realistic conductors. As a result, we find that, for a conductor with a large Thomson coefficient, the temperature derivative of the Seebeck coefficient, the Thomson-effect-induced heat absorption overcomes the Joule heating, resulting in current-induced cooling in the bulk region. We also elucidate that a feedback effect of the Thomson effect stabilizes the system temperature to one-side of the heat bath, which reflects the fact that the Thomson effect is dependent on the position and proportional to the local temperature gradient. This work will be the basis for thermal management utilizing the Thomson effect., IOP Publishing
Japanese Journal of Applied Physics, 13 Mar. 2023, [Reviewed] - 〔Major achievements〕Combinatorial dependence of magnetic printing characteristics in double magnet master media for energy-assisted magnetic recording
T. Komine, Lead, AIP
AIP advances, 03 Feb. 2023, [Reviewed] - Room-temperature magnetoresistance in Ni78Fe22/C8-BTBT/Ni78Fe22 nanojunctions fabricated from magnetic thin-film edges using a novel technique
M. Matsuzaka; Y. Sasaki; K. Hayashi; T. Misawa; T. Komine; T. Akutagawa; M. Fujioka; J. Nishii; H. Kaiju, The paper presents room-temperature magnetoresistance in molecular spintronic nanodevices fabricated using magnetic thin-film edges., The Royal Society of Chemistry
Nanoscale Advances, 05 Oct. 2022, [Reviewed] - 〔Major achievements〕Master structure dependence of double magnet master on magnetic printing performance onto energy-assisted magnetic recording media
T. Komine, The dependence of double magnet master (DMM) printing characteristics on master thickness and non-magnetic separator (NMS) thickness is investigated using micromagnetic simulation. It is found that the recording field difference saturates when the master thickness reaches the bit length. The NMS, which separates the two magnetic materials of the DMM, shifts the maximum points of the recording field distribution into the softer magnet regions, decreasing the island-like non-reversed regions and thus enhancing printing performance. The effective switching field is important for understanding magnetic printing characteristics. The printed magnetization distributions are in accordance with the switching field distribution of the recording field generated by the DMM. Therefore, optimizing the master thickness and NMS thickness effectively improves the DMM printing characteristics for various servo patterns., IEEE
IEEE Trans. Magn., 31 Jan. 2022, [Reviewed] - 〔Major achievements〕Novel technique for controlling anisotropic ion diffusion: bulk single-crystalline metallic silicon clathrate
S Iwasaki; H. Morito; T. Komine; K. Morita; T. Shibuya; J. Nishii; M. Fujioka, Na-free Si clathrates consisting only of Si cages are an allotrope of diamond-structured Si. This material is promising for various device applications, such as next-generation photovoltaics. The probable technique for synthesizing Na-free Si clathrates is to extract Na+ from the Si cages of Na24Si136. Vacuum annealing is presently a well-known conventional and effective approach for extracting Na. However, this study demonstrates that Na+ cannot be extracted from the surface of a single-crystalline type-II metallic Si clathrate (Na24Si136) in areas deeper than 150 µm. Therefore, a novel method is developed to control anisotropic ion diffusion: this is effective for various compounds with a large difference in the bonding strength between their constituent elements, such as Na24Si136 composed of covalent Si cages and weakly trapped Na+. By skillfully exploiting the difference in the chemical potentials as a driving force, Na+ is homogeneously extracted regardless of the size of the single crystal while maintaining high crystallinity. Additionally, the proposed point defect model is evaluated via density functional theory, and the migration of Na+ between the Si cages is explained. It is expected that the developed experimental and computational techniques would significantly advance material design for synthesizing thermodynamically metastable materials., Wiley
Adv. Mater., 27 Dec. 2021, [Reviewed] - 〔Major achievements〕Voltage-control of damping constant in magnetic–insulator/topological–insulator bilayers
T. Chiba; A. O. Leon; T. Komine, Last, AIP Publishing
Appl. Phys. Lett., 01 Jul. 2021, [Reviewed] - 〔Major achievements〕Double magnet master media for magnetic printing onto energy-assisted magnetic recording media
T. Komine, IEEE
IEEE Trans. Magn., 21 May 2021, [Reviewed] - Anomalous Nernst and Seebeck Effects in NiCo2O4 Films
H. Koizumi; A. Hidaka; T. Komine; H. Yanagihara
J. Magn. Soc. Jpn., 27 Jan. 2021, [Reviewed] - Thermoelectric refrigerator based on asymmetric surfaces of a magnetic topological insulator
T. Chiba; T. Komine, AIP Publishing
AIP advances, 30 Dec. 2020, [Reviewed] - Voltage-driven magnetization switching via Dirac magnetic anisotropy and spin-orbit torque in topological-insulator-based magnetic heterostructures
T. Chiba; T. Komine, Last
Phys. Rev. Appl., 11 Sep. 2020, [Reviewed] - Electrical fluctuation spectra due to characteristic thermal diffusion in Ta thin films deposited by RF-magnetron sputtering
R. Uesugi; T. Komine; M. Mizuno; R. Ando; H. Akabane, Corresponding, IOP Publishing
Jpn. J. Appl. Phys., 07 Feb. 2020, [Reviewed] - First Principle Band Calculations of Mg2Si Thin Films with (001) and (110) Orientations
M. Takizawa; T. Komine; H. Udono; T. Aono
JJAP Conf. Proc., 28 Sep. 2019, [Reviewed] - Ambipolar Seebeck power generator based on topological insulator surfaces
T. Chiba; S. Takahashi; T. Komine
Appl. Phys. Lett., 23 Aug. 2019, [Reviewed] - Robustness of Voltage-induced Magnetocapacitance
H. Kaiju; T. Misawa; T. Nagahama; T. Komine; O. Kitakami; M. Fujioka; J. Nishii; and G. Xiao
Scientific reports, 02 Oct. 2018, [Reviewed] - Novel behaviors of anomalous Hall effect in TbFeCo ferrimagnetic thin films
Ryo Ando; Takashi Komine; Shiori Sato; Shingo Kaneta; Yoshiaki Hara, American Institute of Physics Inc.
AIP Advances, 01 May 2018, [Reviewed] - Geometrical contribution to the anomalous Nernst effect in TbFeCo thin films
Ryo Ando; Takashi Komine, American Institute of Physics Inc.
AIP Advances, 01 May 2018, [Reviewed] - Dynamical nuclear spin polarization in a quantum point contact under in-plane magnetic fields
Aono Tomosuke; Stano Peter; Kawamura Minoru; Ono Keiji; Komine Takashi, The Physical Society of Japan
Meeting Abstracts of the Physical Society of Japan, 2018 - Fabrication of a Nanoscale Electrical Contact on a Bismuth Nanowire Encapsulated in a Quartz Template by Using FIB-SEM
Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine
JOURNAL OF ELECTRONIC MATERIALS, May 2017, [Reviewed] - Experimental and theoretical evaluations of the galvanomagnetic effect in an individual bismuth nanowire
Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine, American Chemical Society
Nano Letters, 2017, [Reviewed] - Theoretical modeling of electrical resistivity and Seebeck coefficient of bismuth nanowires by considering carrier mean free path limitation
Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine; Akira Endo
JOURNAL OF APPLIED PHYSICS, Jan. 2017, [Reviewed] - Structural and magnetic properties of Ni78Fe22 thin films sandwiched between low-softening-point glasses and application in spin devices
Takahiro Misawa; Sumito Mori; Takashi Komine; Masaya Fujioka; Junji Nishii; Hideo Kaiju
APPLIED SURFACE SCIENCE, Dec. 2016, [Reviewed] - Giant thermoelectric figure of merit in a noninteracting quantum dot system with massless Dirac fermions
Tomosuke Aono; Takashi Komine
PHYSICAL REVIEW B, Oct. 2016, [Reviewed] - Anomalous Nernst Effect of Perpendicularly Magnetic Anisotropy TbFeCo Thin Films
Ryo Ando; Takashi Komine; Yasuhiro Hasegawa
JOURNAL OF ELECTRONIC MATERIALS, Jul. 2016, [Reviewed] - Micromagnetic analysis of current-induced domain wall motion in a bilayer nanowire with synthetic antiferromagnetic coupling
Takashi Komine; Tomosuke Aono
AIP ADVANCES, May 2016, [Reviewed] - Magnetic-Field Dependence of Thermoelectric Properties of Sintered Bi90Sb10 Alloy
Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine
JOURNAL OF ELECTRONIC MATERIALS, Mar. 2016, [Reviewed] - Enhancement of Seebeck Coefficient in Bi Nanowires by Electric Field Effect
Takashi Komine; Tomosuke Aono; Yuta Nabatame; Masayuki Murata; Yasuhiro Hasegawa
JOURNAL OF ELECTRONIC MATERIALS, Mar. 2016, [Reviewed] - Tight-binding theory of surface spin states on bismuth thin films
Kazuo Saito; Hirokatsu Sawahata; Takashi Komine; Tomosuke Aono
PHYSICAL REVIEW B, Jan. 2016, [Reviewed] - Influence of classical electromagnetic effect on current-induced domain wall motion in a perpendicularly magnetized nanowire
T. Komine; T. Aono; and R. Ando
J. Appl. Phys., 07 Apr. 2015, [Reviewed] - Co thickness dependence of structural and magnetic properties in spin quantum cross devices utilizing stray magnetic fields
H. Kaiju; H. Kasa; T. Komine; T. Abe; S. Mori; T. Misawa; and J. Nishii
J. Appl. Phys., 07 Apr. 2015, [Reviewed] - Simultaneous measurement of the Seebeck coefficient,and thermal diffusivity for bulk thermoelectric materials
R. Homma; Y. Hasegawa; H. Terakado; H. Morita; and T. Komine, We simultaneously measured the Seebeck coefficient and thermal diffusivity of a rectangular parallelepiped bulk thermoelectric material. We used one-dimensional heat conduction equation to show that a periodic heat cycle produces not only the thermoelectromotive force but also a certain phase shift angle between the edge and intermediate points of a sample along the length of the material. Based on the equation of the modified Angström method, an experiment at 300 K was performed using NIST standard material (SRM 3451, Bi2 Te3 material) to measure the Seebeck coefficient and thermal diffusivity. The measured Seebeck coefficient was −231 ± 3 µV/K, which corresponds to the published value. Using the same experimental setup as that for the thermal diffusivity measurement, the dependence of the phase shift angle on frequency was measured from 5 mHz to 10 Hz for the phase shift angle from −8.2 to −450°. The estimated thermal diffusivity was (1.53 ± 0.05) × 10−6m2/s. We conclude that the modified Angström method can be used to measure the Seebeck coefficient and thermal diffusivity simultaneously., Institute of Physics
Jpn. J. Appl. Phys., 23 Jan. 2015, [Reviewed] - Magnetic properties of spin quantum cross devices utilizing stray magnetic fields
Hideo Kaiju; Haruya Kasa; Takashi Komine; Taro Abe; Takahiro Misawa; Junji Nishii, Materials Research Society
Materials Research Society Symposium Proceedings, 2014, [Reviewed] - Micromagnetic Study of Influence of Gd Content on Current-Induced Domain Wall Motion in a Ferrimagnetic Nanowire
Jo Kajitani; Takashi Komine; Ryuji Sugita
IEICE TRANSACTIONS ON ELECTRONICS, Dec. 2013, [Reviewed] - Dependence of hard-axis anisotropy field on domain wall width for current-induced domain wall motion in nanowires
Makoto Ito; Ayaka Ooba; Takashi Komine; Ryuji Sugita
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Aug. 2013 - Micromagnetic Study on Influence of the Magnetic Field Direction on the Domain Structure in Stacked Media
Y. Yamaguchi; S. Sato; S. Kumagai; T. Komine; R. Sugita
IEEE TRANSACTIONS ON MAGNETICS, Jul. 2013, [Reviewed] - Thermal conductivity of an individual bismuth nanowire covered with a quartz template using a 3-omega technique
Y. Hasegawa; M. Murata; F. Tsunemi; Y. Saito; K. Shirota; T. Komine; C. Dames; and J. E. Garay
J. Elec. Mater., 28 Jun. 2013, [Reviewed] - Dependence of Temperature Coefficient of Electrical Resistivity on Individual and Single-Crystal Bismuth Nanowires
M. Murata; F. Tsunemi; Y. Saito; K. Shirota; K. Fujiwara; Y. Hasegawa; and T. Komine
J. Elec. Mater., 28 Jun. 2013, [Reviewed] - Numerical analysis of boundary scattering effect on transport properties in a Bi-Sb nanowire
Nabatame, Y.; Matsumoto, T.; Ichige, Y.; Komine, T.; Sugita, R.; Murata, M.; Hasegawa, Y.
J. Elec. Mater., 01 Jun. 2013, [Reviewed] - Micromagnetic study of novel domain wall motion modes in bilayer nanowire with low saturation magnetization
A. Ooba; T. Komine; R. Sugita
JOURNAL OF APPLIED PHYSICS, May 2013, [Reviewed] - Shubnikov--de Haas Oscillations in Single-Crystal Bismuth Nanowires Encased in Quartz Template
Tsunemi Fumiaki; Murata Masayuki; Saito Yusuke; Shirota Katsuhito; Hasegawa Yasuhiro; Komine Takashi, Last, Shubnikov--de Haas (SdH) oscillations were measured at 0.3 K in bismuth nanowires with diameters of 393, 548, and 622 nm, and lengths of over 1 mm, which were encased in quartz templates. The magnetoresistance was measured up to a magnetic field of 17 T. Distinct SdH oscillations were observed, and the nanowire samples were rotated in the magnetic field to determine the contribution due to holes, electrons, and spin--orbit interactions. For the 622-nm-diameter nanowire, for example, values of 30.7 meV and 1.66\times 10^{17} cm-3were obtained for the Fermi energy and carrier density, respectively, which were similar to the values for bulk bismuth., The Japan Society of Applied Physics
Applied Physics Express, 25 Apr. 2013, [Reviewed] - Magnetic Domain Structure in Thin CoPt Films with Perpendicular Anisotropy
Y. Kawada; R. Tojo; S. Sato; T. Komine; and R. Sugita, 日本磁気学会
J. Magn. Soc. Jpn., 01 Mar. 2013, [Reviewed] - Effect of Applied Magnetic Field Direction on Magnetic Cluster State of Perpendicular Recording Media
S. Sato; Y. Yamaguchi; T. Komine; R. Sugita
IEEE TRANSACTIONS ON MAGNETICS, Nov. 2012, [Reviewed] - Influence of Interlayer Coupling on Current-Induced Domain Wall Motion in Multilayered Nanowires
A. Ooba; T. Komine; R. Sugita
IEEE TRANSACTIONS ON MAGNETICS, Nov. 2012, [Reviewed] - Perpendicular Magnetic Printing by Using a Multi-layered Master Medium with Perpendicular Anisotropy
R. Kawasaki; M. Onose; A. Oyama; Y. Kawada; T. Komine; and R. Sugita, A multi-layered master medium with perpendicular anisotropy is proposed. The multi-layered master medium is composed of a thin CoPt film with perpendicular magnetic anisotropy, a nonmagnetic interlayer with several nanometers in thickness, and a soft magnetic FeCo-based film. Magnetic printing characteristics by using single-layered and multi-layered master media were investigated through experiments. The best magnetic printing characteristics were obtained by using the multi-layered master medium. This is because the multi-layered master medium has larger recording field than the single-layered master media near side wall of convex part due to high perpendicular anisotropy of the CoPt film and image effect by the soft magnetic film., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Oct. 2012, [Reviewed] - Effect of a Pinning Field on the Critical Current Density for Current-Induced Domain Wall Motion in Perpendicular Magnetic Anisotropy Nanowires
Ayaka Ooba; Yuma Fujimura; Kota Takahashi; Takashi Komine; Ryuji Sugita
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, Sep. 2012, [Reviewed] - Preparation of bismuth nanowire encased in quartz template for Hall measurements using focused ion beam processing
Masayuki Murata; Yasuhiro Hasegawa; Takashi Komine; Tomohiro Kobayashi
NANOSCALE RESEARCH LETTERS, Sep. 2012, [Reviewed] - Four-Wire Resistance Measurements of a Bismuth Nanowire Encased in a Quartz Template Utilizing Focused Ion Beam Processing
Masayuki Murata; Hiroya Yamamoto; Fumiaki Tsunemi; Yasuhiro Hasegawa; Takashi Komine
JOURNAL OF ELECTRONIC MATERIALS, Jun. 2012, [Reviewed] - Perpendicular Magnetic Printing Characteristics along Cross-Track Direction on ECC Media
T. Kawamae; T. Komine and R. Sugita, Magnetic printing characteristics along the cross-track direction on ECC media were investigated by using micromagnetic simulation. There is an optimum printing field in which the difference between ideal and calculated magnetization distributions is minimum except for checker patterns in edge printing. It was clarified that the difference in bit printing was smaller than that in edge printing. When the bit size becomes smaller, the ratio of the difference to the track pitch became larger. The difference in dot patterns was smaller than that in checker patterns for bit printing, whereas the difference in checker patterns was smaller than that in dot patterns for edge printing., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2012, [Reviewed] - Magnetic Field Direction Dependence of Magnetic Cluster Size in ECC Media
Y. Yamaguchi; Y. Kawada; T. Komine and R. Sugita, The effect of applied magnetic field direction on the magnetic cluster size of exchange coupled composite (ECC) media was analyzed by using micromagnetic simulation. The magnetization distribution in all cases exhibited a maze domain structure. The magnetic cluster size decreased as the applied field direction tilted from perpendicular to in-plane. For the hard layer only and the soft layer only, the magnetic cluster size in the perpendicular applied field was the same as that in the in-plane field. The soft layer dominated the magnetic cluster size of the ECC medium in the perpendicular field, whereas the hard layer dominated that in the in-plane field., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2012, [Reviewed] - Numerical Study of Current-induced Domain Wall Motion in a Perpendicular Magnetic Anisotropy Nanowire in the Presence of Wall Pinning
A. Ooba; Y. Fujimura; T. Komine; and R. Sugita, The effect of pinning sites that originated from magnetic anisotropy distributions on critical current velocity in current-induced domain wall motion was investigated by using micromagnetic simulation. As a result, we found the pinning position and size had almost no effect on the critical current velocity. Moreover, the decrease in saturation magnetization reduced the critical current density even if the nanowire had pinning sites that originated from the anisotropy distribution. Since the estimated pinning field was attributed to the intermediate pinning region, the magnetic anisotropy distribution had almost no effect on the critical current density., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2012, [Reviewed] - Thickness Dependence of Magnetic Properties of CoPt Perpendicular Magnetic Anisotropy Film
Y. Kawada; M. Onose; R. Kawasaki; A. Oyama; T. Komine; and R. Sugita, The relation between thickness and magnetic properties of CoPt perpendicular magnetic anisotropy film was investigated through experiments and micromagnetic simulation. The perpendicular nucleation field and saturation field decreased as the film thickness decreased, whereas the in-plane squareness ratio increased as the thickness decreased. The increase in in-plane squareness ratio with decreasing thickness was due to an expansion of the domain wall region that occurred with the decrease in thickness., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2012, [Reviewed] - Current-induced domain wall motion in a multilayered nanowire for achieving high density bit
T. Komine; A. Ooba; R. Sugita
JOURNAL OF APPLIED PHYSICS, Apr. 2012, [Reviewed] - Effect of spacing between master and slave media on printing, characteristics
M. Onose; R. Kawasaki; T. Komine; and R. Sugita, The effect of spacing between master and slave media on printing characteristics was investigated in this study by using micromagnetic simulation. The results indicated that the printing characteristics were improved as the spacing decreased. At the optimal printing magnetic field, the effect of the spacing for checker pattern was larger than that for L/S pattern. Decreased in the spacing expanded the tolerance region in which superior printing characteristics were obtained. Moreover, decreased in the spacing also expanded the overlap region between tolerance regions for two patterns., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2012, [Reviewed] - Effect of interlayer exchange coupling on magnetization reversal process in ECC media with high coercivity
A. Oyama; T. Komine; R. Sugita
JEMS 2012 - JOINT EUROPEAN MAGNETIC SYMPOSIA, 2012, [Reviewed] - Magnetic domain structure in thin CoPt perpendicular magnetic anisotropy films
Y. Kawada; M. Onose; R. Tojo; T. Komine; R. Sugita
JEMS 2012 - JOINT EUROPEAN MAGNETIC SYMPOSIA, 2012, [Reviewed] - Magnetic domain structure in thin CoPt perpendicular magnetic anisotropy films
Y. Kawada; M. Onose; R. Tojo; T. Komine; R. Sugita
JEMS 2012 - JOINT EUROPEAN MAGNETIC SYMPOSIA, 2012, [Reviewed] - Magnetization Distribution of Tb/in2 Class Hard Disks Recorded With Bit Printing and Edge Printing
Murakoshi, T.; Komine, T.; Sugita, R.
IEEE Trans. Magn., 18 Sep. 2011, [Reviewed] - Influence of initial magnetization of master medium on magnetic printing characteristics
R. Kawasaki; Y. Tanaka; T. Komine and R. Sugita, The influence of the initial magnetization of a perpendicular anisotropy master medium (PAMM) on bit printing characteristics was investigated through experiments. As a result, the initial magnetization of PAMM affected magnetic printing characteristics for a bit length of 150 nm. Here, the best magnetic printing characteristics were obtained when PAMM was initially magnetized in the direction of the printing field. However, for a bit length of 200 nm, the initial magnetization of PAMM had little influence on magnetic printing characteristics., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Sep. 2011, [Reviewed] - Thermoelectric propeties for single crystal bismuth nanowires using a mean free path limitation model
D. Nakamura; Y. Hasegawa; M. Murata; H. Yamamoto; T. Komine
J. Appl. Phys., 01 Aug. 2011, [Reviewed] - Effect of Pattern Shape of Master Medium on Bit Printing Characteristics
M. Onose; R. Kawasaki; Y. Tanaka; Y. Kawada; T. Komine and R. Sugita, In this study, the bit printing characteristics of line and space (L/S), checkerboard, and dot patterns were compared in experiments. The results indicated that the peak-to-peak values of the MFM output of L/S, checkerboard, and dot patterns were almost the same. The optimum printing field for the L/S pattern was the same as that for the checkerboard pattern, whereas the optimum printing field for the dot pattern was lower than those of the L/S and checkerboard patterns. This is because the maximum value of the recording field in the dot pattern was larger than those of the L/S and checkerboard patterns., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Jul. 2011, [Reviewed] - Micromagnetic Analysis of Current-Induced Domain Wall Motion in a Magnetic Nanowire with Low-Saturation Magnetization and Perpendicular Magnetic Anisotropy
K. Takahashi; A. Ooba; T. Komine and R. Sugita, The dependence of saturation magnetization and uniaxial anisotropy constant on current-induced domain wall motion in a magnetic nanowire with perpendicular magnetic anisotropy was analyzed through micromagnetic simulation. The results indicated that the critical current density linearly decreased by reducing the saturation magnetization. Even if the domain wall width was changed by the uniaxial anisotropy constant, the domain wall width did not influence the critical current density since the increase in the domain wall width anisotropy constant caused an increase in the effective wall anisotropy. It was revealed that the decrease in the saturation magnetization was the dominant factor in reducing the critical current density., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Jul. 2011, [Reviewed] - Magnetization Distribution of Hard Disk Recorded with Magnetic Printing and Magnetic Head
T. Murakoshi; T. Komine and R. Sugita, The magnetization distribution of a hard disk recorded with magnetic printing and a recording head were compared by utilizing micromagnetic simulation. The servo-signals were modeled with a line and space (L/S) pattern and a checker pattern in this study. The fidelity of recording for L/S and checker patterns were the similar for both methods. As a result, we found that the recording fidelity in magnetic printing was equal to that in head recording though both recording field strength and the gradient in magnetic printing were less than those for head recording. This is because magnetic printing has no recording demagnetization., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Jul. 2011, [Reviewed] - Influence of Master Pattern Size on Perpendicular ,Magnetic Printing Characteristics
T. Kawamae; T. Komine and R. Sugita, The influence of patterned magnetic film size on edge printing characteristics was investigated using micromagnetic simulation. When the track width of the patterned magnetic film was narrower than the desired track width, the printing characteristics were improved. It was revealed that the tolerance for printing characteristics decreased as the magnetic film thickness became thinner, although the printing characteristics under the optimum printing field did not depend on magnetic film thickness., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Jul. 2011, [Reviewed] - Numerical Study of Effects of Scattering Processes on Transport Properties of Bi Nanowires
Yuki Ichige; Tsuyoshi Matsumoto; Takashi Komine; Ryuji Sugita; Tomosuke Aono; Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa
JOURNAL OF ELECTRONIC MATERIALS, May 2011, [Reviewed] - Numerical Study of Effect of Surface Potential on Transport Properties of Bi Nanowires
Tsuyoshi Matsumoto; Yuki Ichige; Takashi Komine; Ryuji Sugita; Tomosuke Aono; Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa
JOURNAL OF ELECTRONIC MATERIALS, May 2011, [Reviewed] - Numerical Analysis of Effect of Scattering Process on Transport Properties in Bi Nanowires
Y. Ichige; T. Matsumoto; T. Komine; R. Sugita; T. Aono Y. Hasegawa; M. Murata; and D. Nakamura
J. Elec. Mater., 01 May 2011, [Reviewed] - Crystal Orientation and Transport Properties of a 633-nm-Diameter Bismuth Nanowire
Yasuhiro Hasegawa; Daiki Nakamura; Masayuki Murata; Hiroya Yamamoto; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura
JOURNAL OF ELECTRONIC MATERIALS, May 2011, [Reviewed] - Reduction of intrinsic critical current density for current-induced domain wall motion by using a ferrimagnetic nanowire with perpendicular magnetic anisotropy
T. Komine; K. Takahashi; A. Ooba; R. Sugita
JOURNAL OF APPLIED PHYSICS, Apr. 2011, [Reviewed] - Reduction of temperature fluctuation within low temperature region using a cryocooler
Daiki Nakamura; Yasuhiro Hasegawa; Masayuki Murata; Hiroya Yamamoto; Fumiaki Tsunemi; Takashi Komine
REVIEW OF SCIENTIFIC INSTRUMENTS, Apr. 2011, [Reviewed] - Influence of magnetic domain of perpendicular anisotropy master medium on printing characteristics
Y. Tanaka; T. Komine and R. Sugita, The influence of the magnetic domain of the perpendicular anisotropy master medium (PAMM) on printing characteristics is analyzed by using micromagnetic simulation. As a result, when AC-erased CoPt film makes contact with the recording layer, the magnetization of the recording layer is reversed at the position corresponding to the domain wall of the CoPt film. However, the magnetic domain has no effect on the printing characteristics in the actual printing process., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2011, [Reviewed] - Numerical analysis of perpendicular magnetic printing for hard disks beyond 2 Tb/in(2)
Takuji Murakoshi; Takashi Komine; Ryuji Sugita
SPECIAL ISSUE ON THE 9TH PERPENDICULAR MAGNETIC RECORDING CONFERENCE, 2011, [Reviewed] - Influence of domain of perpendicular anisotropy master medium on perpendicular magnetic printing
Yasuki Tanaka; Hirotaka Konishi; Takashi Komine; Ryuji Sugita
SPECIAL ISSUE ON THE 9TH PERPENDICULAR MAGNETIC RECORDING CONFERENCE, 2011, [Reviewed] - Thermoelectric Properties of a 593-nm Individual Bismuth Nanowire Prepared Using a Quartz Template
Daiki Nakamura; Masayuki Murata; Yasuhiro Hasegawa; Takashi Komine; Daisuke Uematsu; Shinichiro Nakamura; Takashi Taguchi
JOURNAL OF ELECTRONIC MATERIALS, Sep. 2010, [Reviewed] - High-precision temperature control and stabilization using a cryocooler
Yasuhiro Hasegawa; Daiki Nakamura; Masayuki Murata; Hiroya Yamamoto; Takashi Komine
REVIEW OF SCIENTIFIC INSTRUMENTS, Sep. 2010, [Reviewed] - Electrical nanocontact between bismuth nanowire edges and electrodes
Murata, M.; Nakamura, D.; Hasegawa, Y.; Komine, T.; Uematsu, D.; Nakamura, S.; Taguchi, T.
J. Elec. Mater., 08 Jun. 2010, [Reviewed] - Numerical analysis of effective thermal conductivity in microwire array element
T. Komine; M. Kuraishi; T. Teramoto; R. Sugita; Y. Hasegawa; M. Murata; and D. Nakamura
J. Elec. Mater., 25 May 2010, [Reviewed] - Influence of exchange coupling on current-driven domain wall motion in a nanowire
Komine, T.; Takahashi, K.; Murakami, H.; Sugita, R.
J. Magn. Magn. Mater., 12 May 2010, [Reviewed] - Composition Dependence of the Printing Characteristics When Using a CoPt Perpendicular Anisotropy Master Medium
H. Konishi; R. Kawasaki; Y. Tanaka; T. Komine; and R. Sugita, In this study, influence if the pt content in a perpendicular anisotropy master medium (PAMM) on the bit printing characteristics was investigated through experiments simulation. As a result, the most excellent printing characteristics were obtained with a Pt content of 10% to 20%. This result could be explained by the fact that the anisotropy and the saturation magnetization corresponded to the Pt content of the PAMM. The optimum printing field of the PAMM was about 1kOe smaller than that of a pure Co or conventional master medium., The Institute of Image Information and Television Engineers
J. Magn. Soc. Jpn., 01 May 2010, [Reviewed] - Influence of a Master Pattern Shape on Magnetic Printing Characteristics
K. Tanabe; T. Saito; N. Sheeda; T. Komine; and R. Sugita, A master pattern with the a line-and-space (L/S) part and a checker part in the servo signals was made by using an FeCo film, and the edge printing characteristics of both parts were compared. The MFM output in the checker part was equal to the L/S part for a bit length of 200 nm, while for a bit length of 100 nm, the MFM output in the checker part decreased by about 30% compared with that in the L/S part, because of the MFM's low resolution. However, for a bit length of 100 nm, simulation results showed that the edge-printed magnetization of the checker part was equal to that of the L/S part. When the TMR head reproduced both parts, the output in the checker part was equal to that in the L/S part. The optimum printing field for the checker part was the same as that for the L/S part. Moreover, the rate of decrease in the MFM output did not depend on the printing field., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2010, [Reviewed] - Current-Driven Multi-wall Motion in a Nanowire with Perpendicular Magnetic Anisotropy
H. Murakami; K. Takahashi; T. Komine and R. Sugita, The current-driven domain motion of a multi-wall in a magnetic nanowire with perpendicular magnetic anisotropy was analyzed in this study by using micromagnetic simulation. As a result, we found that there were two modes in the multi-wall motion, and the motion was determined by the applied current density and non-adiabatic spin torque parameters; this was similar to single-wall motion. The x-component of magnetization in the domain wall exhibited different behavior according to the current density. The bit length was extended for a low current density and the bit length was varied for a high current density due to interaction between the magnetic domain walls., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2010, [Reviewed] - Influence of Exchange Stiffness Constant on Current-driven Domain Wall
K. Takahashi; H. Murakami; T. Komine and R. Sugita, The dependence of the exchange stiffness constant on current-driven domain wall motion in a magnetic nanowire was examined through micromagnetic simulation. As a result, we found that the critical current density changes according to the width of the domain wall at the edge of the nanowire., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2010, [Reviewed] - Simulation Analysis of Perpendicular Magnetic Printing on Exchange Coupled Composite Media
T. Murakoshi; T. Komine and R. Sugita, The perpendicular magnetic printing characteristics on exchange coupled composite (ECC) media are investigated using micromagnetic simulation. It is clarified that magnetic printing onto ECC media is feasible. Master patterns were clearly printed onto ECC or semi-ECC media with coherent rotation of magnetizations in hard and soft layers. The optimum printing characteristics in ECC or semi-ECC media is the same as that of single-layered (SL) medium. When the thermal stabilities in SL and ECC media are the same, the optimum printing field for ECC medium is lower than that of SL medium. To obtain sufficient printing characteristics in ECC media, the ECC media need stronger interlayer exchange coupling than that of semi-ECC media., The Institute of Image Information and Television Engineers
J. Magn. Soc. Jpn., 01 May 2010, [Reviewed] - Numerical Analysis of Perpendicular Magnetic Printing by Using a Master with Various Patterns
Y. Tanaka; H. Konishi; T. Komine; and R. Sugita, Magnetic printing characteristics using a perpendicular anisotropic master medium (PAMM) with various patterns were numerically analyzed. The recording field distribution of PAMM and the magnetization distribution of the recording layer were analyzed by micromagnetic simulation. As a result, the recording field of dot a pattern was about 1 kOe higher than those of line and checker patterns under the same printing field. The magnetic printing with PAMM was found to be applicable to any pattern. When the bit length was not more than 100 nm, the optimum printing field for the dot pattern was 1-2 kOe lower than those of line and checker patterns. The optimum printing field varied according to pattern and bit length., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2010, [Reviewed] - Servo Signal Recording with Perpendicular Magnetic Printing Method
SUGITA Ryuji; KOMINE Takashi, Servo signals can be written with incredibly high speed compared to conventional methods, high accuracy and low cost by using a magnetic printing method. There are two types of magnetic printing for perpendicular hard disks. One is bit printing where printing magnetic field is applied in perpendicular direction, and the other is edge printing where the field is applied in in-plane direction. The merit of the bit printing is that the reproduced waveform from printed hard disks is almost the same as that from head-recorded ones. On the other hand, in the edge printing high S/N is expected in short bit length region. It is possible to magnetic-print the bit below 50nm long, which shows the perpendicular magnetic printing is usable for ultrahigh density hard disks such as 1Tb/in^2 or more., The Institute of Image Information and Television Engineers
ITE Technical Report, 2010 - Micromagnetic study of magnetic printing onto various slave media
Takashi Komine; Takuji Murakoshi; Yasuki Tanaka; Yuichi Sakaguchi; Ryuji Sugita
INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, [Reviewed] - Micromagnetic analysis of current-driven domain wall motion of multi-bit in a nanowire with perpendicular magnetic anisotropy
Hiroshi Murakami; Kouta Takahashi; Takashi Komine; Ryuji Sugita
INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, [Reviewed] - Effect of Non-adiabatic Spin Torque Parameter on Domain Wall Motion Driven by Pulse Current in a Magnetic Nanowire
Murakami, H.; Komine, T.; Sugita, R.
IEEE Trans. Magn., 18 Sep. 2009, [Reviewed] - Perpendicular anisotropy master medium in magnetic printing for writing high density servo signal
Nurul Sheeda; M. Nakazawa; H. Konishi; T. Komine and R. Sugita
IEEE Trans. Magn., 18 Sep. 2009, [Reviewed] - Reducing thermal conductivity of thermoelectric materials by using a narrow wire geometry
Yasuhiro Hasegawa; Masayuki Murata; Daiki Nakamura; Takashi Komine
JOURNAL OF APPLIED PHYSICS, Sep. 2009, [Reviewed] - Thermoelectric Properties of Bismuth Micro/Nanowire Array Elements Pressured into a Quartz Template Mold
Yasuhiro Hasegawa; Masayuki Murata; Daiki Nakamura; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura
JOURNAL OF ELECTRONIC MATERIALS, Jul. 2009, [Reviewed] - Mean free path limitation of thermoelectric properties of bismuth nanowire
Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura; Christopher M. Jaworski; Vladimir Jovovic; Joseph P. Heremans
JOURNAL OF APPLIED PHYSICS, Jun. 2009, [Reviewed] - PulsPulse Current Waveform Dependence of Current-Driven Domain Wall Motion in a Magnetic Nanowire
H. Murakami; T. Komine; and R. Sugita, In this study, the influence of the pulse current waveform on the domain wall motion in a magnetic nanowire with notch was investigated by using micromagnetic simulation. As a result, it was found that domain wall depinning was enhanced by an adequate pulse current frequency, which was slightly lower than the natural frequency estimated by gravity point of domain wall. The presence of notch in nanowire, the difference of pinning potential for domain wall in each side causes the different oscillation in each domain wall and the coupled oscillation. The critical current density was estimated varying the duty ratio of the pulse current. The critical current with a pulse of a duty ratio of about 0.5 was most effectively decreased., The Institute of Image Information and Television Engineers
J. Magn. Soc. Jpn., 01 May 2009, [Reviewed] - Output Waveforms from Printed and Head Recorded utput Media
K. Tanabe; S. Okami; T. Saito; T. Komine and R. Sugita, First, the relation between MFM output and head output waveforms from perpendicular magnetic printed media was clarified. Next, the MFM output waveforms from magnetically printed and head-recorded media were compared by using metal-evaporated (ME) tape as a slave medium. The MFM output waveform corresponds very closely with the head output waveform, and it appears that the MFM output is similar to the perpendicular component of the stray field. In the case of a long bit length, the bit-printing (BP) waveform is similar to the head-recording (HR) waveform, while the edge-printing (EP) waveform is significantly different from the HR waveform. On the other hand, in the case of a short bit length, the BP, EP, and HR waveforms are all sinusoidal, but the phase of the EP waveform is 90° shifted from the HR waveform, while the BP waveform is almost identical to the HR waveform., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2009, [Reviewed] - Analysis of Waveform from Magnetic Printed Perpendicular Hard DisAnalysis Disk
N. Sheeda; S. Okami; Y. Sakaguchi; T. Komine and R. Sugita
J. Magn. Soc. Jpn., 01 May 2009, [Reviewed] - Thermoelectric properties of bismuth nanowires in a quartz template
Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura; Vladimir Jovovic; Joseph P. Heremans
APPLIED PHYSICS LETTERS, May 2009, [Reviewed] - Mobility estimation in microsized bismuth wire arrays
Yasuhiro Hasegawa; Masayuki Murata; Daiki Nakamura; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura
JOURNAL OF APPLIED PHYSICS, May 2009, [Reviewed] - Numerical Analysis of Magnetic Printing by Using a Perpendicular Anisotropy Master Medium
M. Nakazawa; H. Konishi; Nurul Sheeda; T. Komine; and R. Sugita, A perpendicular anisotropy master medium (PAMM) is proposed. The PAMM is composed of CoPt film with perpendicular magnetic anisotropy and large saturation magnetization. The magnetization distributions of PAMM and conventional master media (using an FeCo soft magnetic layer) were analyzed by using micromagnetic simulation. It was found that the peak-to-valley value of the recording field and the recording field gradient at the edge of the patterned magnetic film of PAMM were larger than those of the conventional master medium. Furthermore, the peak-to-valley value of the recording field and the recording field gradient of PAMM did not depend on the strength of the printing field. The printing characteristic of PAMM is twice that of the conventional master medium. Furthermore, the optimum printing field for PAMM is 1 kOe lower than that of the conventional master medium. As a result, PAMM is expected to improve the printing characteristic of the bit printing method., The Magnetics Society of Japan (MSJ)
J. Magn. Soc. Jpn., 01 Mar. 2009, [Reviewed] - Influence of the Master Pattern Angle on Perpendicular Magnetic Contact Printing Characteristics
T. Saito; Y. Sakaguchi; S. Okami; T. Komine; and R. Sugita, The influence of the inclination angle of the master pattern on the edge printing characteristics for writing phase servo patterns on perpendicular magnetic recording media was investigated. Even if the master pattern angle is 40 degrees, the printing characteristics are only 10 percent lower than when the angle is 0 degrees. The influence of the inclination angle of the master pattern on the printing characteristics is also small when the bit length is changed. The contribution of the in-plane component of the recording field to magnetization reversal is large in edge printing. Although the perpendicular component of the recording field decreases markedly as the inclination angle of the master pattern increases, edge printing can be used for writing phase servo patterns on slave media., The Magnetics Society of Japan (MSJ)
J. Magn. Soc. Jpn., 01 Mar. 2009, [Reviewed] - Influence of Notch Shape and Size on Current-Driven Domain Wall Motions in a Magnetic Nanowire
T. Komine; H. Murakami; T. Nagayama and R. Sugita, 電流駆動ナノワイヤ磁壁メモリにおける切り込みが磁壁移動に及ぼす影響を解析した．また，電流分布を考慮した磁壁移動解析の方法を提案した．その結果，切り込み部に集中する電流分布によって様々な磁壁移動モードが表れることを明らかにした．, The Institute of Image Information and Television Engineers
IEEE Trans. Magn., 17 Dec. 2008, [Reviewed] - Feasibility of Perpendicular Magnetic Duplication at 1 Tbit/inch2
T. Komine; T. Murata; Y. Sakaguchi; Y. Hosoya; N. Sheeda Suhaimi; and R. Sugita, 超高記録密度ビット転写の可能性を解析したところ，1Tbit/inch2の超高密度でも十分な潜在能力を有していることを明らかにした．
IEEE Trans. Magn., 17 Dec. 2008, [Reviewed] - Feasibility of Perpendicular Magnetic Printing at 1 Tb/in(2)
Takashi Komine; Takeshi Murata; Yuichi Sakaguchi; Ryuji Sugita
IEEE TRANSACTIONS ON MAGNETICS, Nov. 2008, [Reviewed] - Analysis of waveform from perpendicular magnetic printed media
Nurul Sheeda; Satoshi Okami; Takashi Komine; and Ryuji Sugita
J. Magn. Magn. Mater., 15 Oct. 2008, [Reviewed] - Influence of the band structure of BiSb alloy on the magneto-Seebeck coefficient
Takayuki Teramoto; Takashi Komine; Shinji Yamamoto; Masahiro Kuraishi; Ryuji Sugita; Yasuhiro Hasegawa; Hiroaki Nakamura
JOURNAL OF APPLIED PHYSICS, Sep. 2008, [Reviewed] - Micromagnetic Simulation of Magnetic Pattern of Master Medium and Soft-Underlayer on Magnetic Perpendicular Duplication
M. Nakazawa; T. Komine; and R. Sugita
J. Magn. Soc. Jpn., 01 Jul. 2008, [Reviewed] - Feasibility of Perpendicular Magnetic Duplication at 1 Tbit/inch2
T. Murata; Y. Sakaguchi; A. Izumi; T. Komine; and R. Sugita, 1 Tbit/inch2の超高密度媒体に対する磁気転写の可能性をマイクロマグネティックシミュレーションにより検討して，磁気転写に十分な潜在能力があることを明らかにした．日本磁気学会学術奨励賞(内山賞),08/09/14
J. Magn. Soc. Jpn., 01 May 2008, [Reviewed] - Dependence of the Perpendicular Magnetic Contact Duplication Characteristics on the Angle of Master Pattern by Using Enlarged Model
T. Saito; H. Yasuda; T. Komine and R. Sugita
J. Magn. Soc. Jpn., 01 May 2008, [Reviewed] - Influence of the Magnetic Properties of Slave Media on Perpendicular Duplication Characteristics
Y. Sakaguchi; T. Murata; T. Komine and R. Sugita
J. Magn. Soc. Jpn., 01 May 2008, [Reviewed] - Micromagnetic Simulation of Current-Induced Domain Wall Motion under a Non-uniform Current Distribution
T. Komine; H. Murakami; T. Nagayama and R. Sugita, 強磁性ナノワイヤにおける電流駆動磁壁移動において，ナノワイヤ端部の切り込みなどにより生じる電流分布を考慮したマイクロマグネティックシミュレーションを提案し，切り込みが閾値電流等に及ぼす影響を議論した．日本磁気学会学術奨励賞(内山賞),08/09/14
J. Magn. Soc. Jpn., 01 May 2008, [Reviewed] - Numerical analysis of the magneto-Seebeck effect of bismuth with anisotropic band structure
Takayuki Teramoto; Takashi Komine; Masahiro Kuraishi; Ryuji Sugita; Yasuhiro Hasegawa; Hiroaki Nakamura
JOURNAL OF APPLIED PHYSICS, Feb. 2008, [Reviewed] - Power factor enhancement in a magnetic field using polycrystalline bismuth microwire arrays
Yasuhiro Hasegawa; Hirofumi Nakano; Hiroyuki Morita; Takashi Komine; Haruhiko Okumura; Hiroaki Nakamura
JOURNAL OF APPLIED PHYSICS, Oct. 2007, [Reviewed] - Analysis of Perpendicular Magnetic Contact Duplication by Using Enlarged Model
H. Yasuda; M. Nagatoshi; M. Suzuki; T. Komine; and R. Sugita, Experiments on perpendicular magnetic contact duplication by using enlarged models were conducted, where we investigated what influence the strength of the duplication field and the magnetic layer thickness of the master had on duplication characteristics. Excellent duplication characteristics were obtained with bit printing when the duplication field was around the value of the coercivity of the slave, and the duplication characteristics improved as the magnetic layer of the master became thicker. In edge printing, the duplication characteristics improved as the duplication field was increased up to a certain field strength, above which the characteristics saturated, and barely depended on the thickness of the magnetic layer in the master. When their duplication magnetizations were compared, edge printing was more advantageous than bit printing., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Sep. 2007, [Reviewed] - Influence of Soft-under-layer in Perpendicular Recording Media on Recording field of Magnetic Duplication
A. Izumi; T. Komine; T. Murata and R. Sugita, The magnetic field distributions around slave media with and without SUL were calculated by using the finite element method to estimate what influence a soft-under-layer (SUL) in a double-layered perpendicular medium had on magnetic duplication characteristics. As a result, we found the SUL enhanced duplication characteristics for any bit length and track width. The SUL in bit printing influences the duplication characteristics more than that in edge printing. The influence of SUL on duplication characteristics in bit printing increases as the strength of the duplication field increases. However, in edge printing, there is a duplication field that maximizes the influence of SUL on duplication characteristics. Moreover, the influence of SUL on duplication characteristics decreases with both bit and edge printing as bit the length of the magnetic pattern decreases, and also decreases as the track width decreases. These dependencies can be explained by taking the demagnetization coefficient of SUL and the total amount of magnetic charge appearing in SUL and magnetic patterns into account., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Sep. 2007, [Reviewed] - Influence of spacing between master and slave media on magnetic duplication characteristics for perpendicular recording media
Takeshi Murata; Akihiko Izumi; Satoshi Okami; Nurul Sheeda Binti Suhaimi; Takashi Komine; Ryuji Sugita
IEICE TRANSACTIONS ON ELECTRONICS, Aug. 2007, [Reviewed] - Analysis of perpendicular magnetic contact duplication by using metal evaporated tape
S. Okami; R. Ushigome; N. Sheeda; T. Komine and R. Sugita
J. Magn. Soc. Jpn., 01 May 2007, [Reviewed] - Micromagnetic Simulation of Magnetization States Recorded by Perpendicular Magnetic Duplication
T. Komine; A. Izumi; T. Murata and R. Sugita, 磁気転写された垂直磁化膜の磁化状態をマイクロマグネティックシミュレーションにより解析した．ビット転写及びエッジ転写における磁化状態の転写条件依存性及びスレーブ媒体の磁気特性との関係について議論した．, The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2007, [Reviewed] - Influence of Saturation Magnetization of a Master Disk on Its Perpendicular Magnetic Contact Duplication Characteristics
T. Murata; A. Izumi; T. Komine; and R. Sugita, The influence of saturation magnetization of a master disk on its perpendicular magnetic contact duplication characteristics was investigated by using the two-dimensional finite element method. An investigation of bit printing (where the duplication field is applied in a direction perpendicular to the disk plane) and edge printing (where the duplication field is applied in an in-plane direction), revealed the following points. In bit printing, the influence of saturation magnetization of a master disk on perpendicular duplication characteristics is very small when the duplication field is nearly equal to the coercivity of the slave (4 kOe), which is the optimum field. On the other hand, in edge printing, the duplication characteristics are better for high saturation magnetization of a master disk than for low saturation magnetization. The cause of this difference in the influence of saturation magnetization of a master disk is the demagnetizing field of the master. In bit printing, the influence of saturation magnetization of a master disk is small because of the high demagnetizing field coefficient, while in edge printing, the influence of saturation magnetization of a master disk is large because of the low demagnetizing field coefficient., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2007, [Reviewed] - Aspect ratio dependence of magnetoresistivity in polycrystalline bismuth microwire arrays
Yasuhiro Hasegawa; Hirofumi Nakano; Hiroyuki Morita; Akio Kurokouchi; Kentarou Wada; Takashi Komine; Hiroaki Nakamura
JOURNAL OF APPLIED PHYSICS, Feb. 2007, [Reviewed] - Potential of servo pattern printing on PMR media with high-density servo signal pattern
M. Nishikawa; S. Wakamatsu; K. Ichikawa; T. Usa; M. Nagao; T. Ishioka; T. Yasunaga; T. Komine; R. Sugita
IEEE TRANSACTIONS ON MAGNETICS, Oct. 2006, [Reviewed] - Influence of Master Pattern Angle against Hard Magnetization Direction,of Slave Medium on Magnetic Duplication Characteristics
H. Yasuda; A. Kaneko; T. Komine; R. Sugita; and T. Muranoi, Magnetic contact duplication is proposed as a method for forming phase servo patterns on hard disks. In a phase servo pattern, the magnetic field used for duplication is applied diagonally across the master pattern. This work clarifies the influence of the master pattern angle θ against hard magnetization direction of the slave medium on the magnetic duplication characteristics. In the case where θ= 30°, the output signal voltage decreases and the half-value width of the signal becomes broad compared with that for θ= 0°; that is, the magnetic duplication characteristics deteriorate as θ increases. Even if the duplication field is made strong for large θ, the magnetic duplication characteristics are not improved., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 May 2006, [Reviewed] - Simulation of Magnetic Contact Duplication for Perpendicular Magnetic Recording Media
Akihiko Izumi; Takashi Komine; Ryuji Sugita; and Tetsuo Muranoi, The characteristics of magnetic contact duplication for perpendicular magnetic recording media are investigated by using the three-dimensional finite element method. In order to magnetically duplicate a servo signal on perpendicular recording media, there are two methods of applying a duplication magnetic field. One is method to apply a magnetic field in a direction perpendicular to the disk plane (perpendicular field application, PFA), and the other is to apply a field in the disk plane (in-plane field application, IFA). In PFA, the dependence of the duplication performance on the field strength has an optimum value which is around the coercivity of the slave medium. In IFA, the duplication performance is improved by increasing the duplication field up to a certain field strength beyond which the strength the performance is saturated. Duplication characteristics of the slave media change a little even though the track width decreases in the case of PFA, while it decreases with decreasing track width in the case of IFA. The results of simulation show that IFA is more advantageous than PFA for duplication of perpendicular magnetic recording media., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2006, [Reviewed] - Numerical Analysis of the Magnetization of Recording Layers Recorded by Magnetic Duplication and Magnetic Head Writing
Atsushi Ohta; Takashi Komine; Ryuji Sugita; and Tetsuo Muranoi, The magnetization distributions of recording layers recorded by magnetic head writing and magnetic duplication were calculated by the two-dimensional finite element method. The recording characteristics of the two methods were evaluated by comparing the magnetization distributions. In head recording, conspicuous bit shifts appeared when the recording current was optimal. In magnetic duplication, slight bit shifts were obtained when the strength of the applied field was greater than optimal. The reproduced output signals were calculated from the magnetization distributions of recording layers recorded by magnetic head writing and magnetic duplication. As a result, it was found that the output voltages of magnetic duplication were the same as those of head recording., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2006, [Reviewed] - Influence of Oblique Magnetic Field from Duplication Magnet on Magnetic Duplication Characteristics
S. Tomikawa; N. Inaba; T. Komine; R. Sugita; T. Muranoi, The magnetic duplication technique using patterned master media is a promising means of writing servo signals onto hard disks at high speed and low cost.It is expected that the direction of the applied magnetic field in the duplication process significantly influences the duplication characteristics.The objective of this paper is to clarify the influence of the oblique magnetic field out of the master plane.Experiments showed that the reproduced waveform from a slave duplicated with an oblique field is asymmetric near both edges of the protrusion of the master.The asymmetric waveform is improved by increasing the field, but the duplication characteristics with an oblique field are still inferior to those with an in-plane field.Computer simulation of the magnetization distribution of the slave duplicated with an oblique field shows that the distribution is asymmetric near both edges of the protrusion of the master, coinciding with the experimental results., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2006, [Reviewed] - A method for analysis of carrier density and mobility in polycrystalline bismuth
Y. Hasegawa; Y. Ishikawa; T. Saso; H. Shirai; H. Morita; T. Komine; and H. Nakamura
Physica B, 01 Feb. 2006, [Reviewed] - Influence of soft-under-layer in perpendicular media on magnetic contact duplication characteristics
A. Izumi; Y. Nagahama; T. Komine; R. Sugita; M. Nagao; M. Nishikawa; T. Yasunagi
INTERMAG 2006 - IEEE International Magnetics Conference, 2006, [Reviewed] - First-principles calculation of atomic-sized Ni nanocontacts
T. Takahashi; T. Komine; R. Sugita; Y. Hasegawa
INTERMAG 2006 - IEEE International Magnetics Conference, 2006, [Reviewed] - Reduction of contact resistance at terminations of bismuth wire arrays
Yasuhiro Hasegawa; Hiroyuki Morita; Akio Kurokouchi; Kentarou Wada; Takashi Komine
ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 2006, [Reviewed] - Numerical analysis of effective thermal conductivity in microwire array element
M. Kuraishi; T. Komine; T. Teramoto; R. Sugita; Y. Hasegawa
ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 2006, [Reviewed] - Geometrical dependence of magneto resistivity in bismuth microwire arrays
Hirofumi Nakano; Yoshiaki Ishikawa; Yasuhiro Hasegawa; Hiroyuki Morita; Takashi Komine
ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 2006, [Reviewed] - Thermoelectric property of Cu2O thin film deposited by reactive ion plating method
H. Uchiyama; Y. Hasegawa; H. Morita; A. Kurokouchi; K. Wada; T. Komine
ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 2006, [Reviewed] - Reduction of contact resistance at terminations of bismuth wire arrays
Y Hasegawa; Y Ishikawa; H Shirai; H Morita; A Kurokouchi; K Wada; T Komine; H Nakamura
REVIEW OF SCIENTIFIC INSTRUMENTS, Nov. 2005, [Reviewed] - Micromagnetic analysis of a magnetic domain wall in 2-D and 3-D nanocontacts
T Komine; T Takahashi; S Ishii; R Sugita; T Muranoi; Y Hasegawa
IEEE TRANSACTIONS ON MAGNETICS, Oct. 2005, [Reviewed] - Performance and possibility on high density bits recording by patterned master magnetic duplication
M. Nagao; H. Kubota; M. Nishikawa; T. Yasunaga; T. Komine; and R. Sugita
Trans. Magn. Soc. Jpn., 01 Aug. 2005, [Reviewed] - Resistivity and Seebeck coefficient measurements of a bismuth microwire array
Y. Ishikawa; Y. Hasegawa; H. Morita; A. Kurokouchi; K. Wada; T. Komine; and H. Nakamura
Physica B: Condensed Matter, 01 Jul. 2005, [Reviewed] - Micromagnetic calculation of the magnetization process in nanocontacts
T. Komine; T. Takahashi; R. Sugita; T. Muranoi; Y. Hasegawa
Journal of Applied Physics, 03 May 2005, [Reviewed] - Electronic transport properties of a bismuth microwire array in a magnetic field
Y Hasegawa; Y Ishikawa; H Morita; T Komine; H Shirai; H Nakamura
JOURNAL OF APPLIED PHYSICS, Apr. 2005, [Reviewed] - Influence of the Spacing between Master and Slave Media on Magnetic Contact Duplication Characteristics
R. Sugita; T. Komine; T. Muranoi; S. Nishikawa; T. Yasunaga; M. Nagao
J. Magn. Soc. Jpn., 01 Mar. 2005, [Reviewed] - Analysis of a Nonmagnetic Semiconductor in a Magnetoresistive Sensor with Flux-guide-type using Finite Element Method
H. Takayama; T. Komine; R. Sugita; T. Muranoi; Y. Hasegawa, We investigate the magnetoresistance of a magnetoresistive element consisting of a nonmagnetic semiconductor, four electrodes, and a metallic shunt, with varying locations of the voltage electrodes. The optimum location of the voltage electrodes is estimated from MR ratios calculated by using the finite element method. The MR ratio of 6.9%, which was obtained at an applied magnetic field of 0.005 T for an MR element with asymmetrical voltage electrodes separated by a distance of 25 nm, is higher than that for the MR element with symmetrical electrodes. In order to improve the MR ratio at a low applied field, a flux-guide-type MR element is proposed in this study. An MR ratio of 124% at an applied field of 0.005 T was obtained for a flux-guide-type element with asymmetrical electrodes., The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Mar. 2005, [Reviewed] - Numerical Analysis of a Magnetic Domain Wall in a Magnetic Nanocontact
T. Komine; T. Takahashi; R. Sugita; T. Muranoi; Y. Hasegawa, 強磁性体ナノ接合の磁壁構造をマイクロマグネティックスにより解析し，Ｈ型強磁性体の接合形状と磁壁幅の関係を明らかにした．, The Magnetics Society of Japan
J. Magn. Soc. Jpn., 01 Feb. 2005, [Reviewed] - Investigation of physical and electric properties of silver pastes as a binder for thermoelectric materials
Atsushi Suzuki; Yasuhiro Hasegawa; Yoshiaki Ishikawa; Takashi Komine; Hiroyuki Morita; Hajime Shirai
Review of Scientific Instruments, 25 Jan. 2005, [Reviewed] - Micromagnetic analysis of a magnetic domain wall in a nanocontact
T. Komine; T. Takahashi; S. Ishii; R. Sugita; T. Muranoi; Y. Hasegawa, IEEE Computer Society
INTERMAG ASIA 2005: Digests of the IEEE International Magnetics Conference, 2005 - Electronic transport properties of a bismuth microwire array in a magnetic field
Y Hasegawa; Y Ishikawa; H Morita; T Komine; H Shirai; H Nakamura
ICT: 2005 24th International Conference on Thermoelectrics, 2005, [Reviewed] - Electronic transport properties of a bismuth microwire array in a magnetic field
Y Hasegawa; Y Ishikawa; H Morita; T Komine; H Shirai; H Nakamura
ICT: 2005 24th International Conference on Thermoelectrics, 2005 - Magneto-Seebeck coefficient of a bismuth microwire array in a magnetic field
Y Hasegawa; Y Ishikawa; T Komine; TE Huber; A Suzuki; H Morita; H Shirai
APPLIED PHYSICS LETTERS, Aug. 2004, [Reviewed] - Analysis of Carrier Density and Mobility of Polycrystalline Bi Dominated by Impurity Scattering of Carrier
Yoshiaki Ishikawa; Yasuhiro Hasegawa; Hiroyuki Morita; Takashi Komine; Hajime Shirai
The 23rd International Conference on Thermoelectrics, 24 Jul. 2004 - Dependence of Magnetic Contact Duplication Properties on Magnetic Layer Thickness of Master Media
R. Sugita; T. Komine; T. Muranoi; M. Nishikawa; T. Yasunaga; M. Nagao
J. Magn. Soc. Jpn., 15 Jan. 2004, [Reviewed] - Numerical calculation of magneto-seebeck coefficient of bismuth under a magnetic field
Y Hasegawa; T Komine; Y Ishikawa; A Suzuki; H Shirai
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Jan. 2004, [Reviewed] - Thermoelectric characteristics of Si/Ge superlattice thin films at temperatures less than 300 K
M Hamabe; H Takahashi; S Yamaguchi; T Komine; T Eura; H Okumura; Y Okamoto; J Morimoto
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Nov. 2003, [Reviewed] - Numerical analysis of thermoelectric properties of bismuth under magnetic field
T Komine; Y Ishikawa; A Suzuki; H Shirai; Y Hasegawa
TWENTY-SECOND INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '03, 2003 - Seebeck coefficient and resistivity measurement of polycrystalline Bi in a magnetic field
Y Ishikawa; A Suzuki; T Komine; H Shirai; Y Hasegawa
TWENTY-SECOND INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '03, 2003 - Investigation on binder for thermoelectric module
A Suzuki; Y Ishikawa; T Komine; H Shirai; Y Hasegawa
TWENTY-SECOND INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '03, 2003 - Thermoelectric characteristics of Si/Ge superlattice thin film at low temperature
M Hamabe; H Takahashi; S Yamaguchi; T Komine; T Eura; Y Okamoto; J Morimoto
XXI INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '02, 2002 - Research and development on a thermoelectric power generating system using low-calorie exhaust gas(final)
T Eura; T Komine; Y Hasegawa; A Takata; F Katsuki; M Katoh; K Nakao; K Utsumi
TWENTIETH INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 2001 - First-principle band calculation of ruthenium for various phases
S Watanabe; T Komine; T Kai; K Shiiki
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Oct. 2000, [Reviewed] - Self-consistent first-principles calculations based on the embedded atomic sphere method
T Komine; K Shiiki
PHYSICAL REVIEW B, Mar. 2000, [Reviewed] - A theoretical study of interfacial structure of Co/Cu and Co/Pd multilayers
Y Fujii; T Komine; T Kai; K Shiiki
JOURNAL OF PHYSICS-CONDENSED MATTER, Dec. 1999, [Reviewed] - Self-consistent embedded atomic sphere method for calculating electronic structure of non-periodic systems
T. Komine and K. Shiiki, We present a new method for calculating the electronic structures of non-periodic system. The atomic sphere is embedded into the finite difference grids. The wavefunction inside atomic spheres is expanded into the spherical wave. The radial basis is linearized on energy. The coefficients of linearized basis sets inside sphere are determined to satisfy the continuity of the logarithmic derivatives between inside and outside sphere. We applied this method to the transition metal and tested it., Progress of Theoretical Physics
Progress of Theoretical Physics, Supplement, Sep. 1999, [Reviewed] - Effect of stabilizing fields on magnetization process of magnetoresistive element
Y Hirata; T Komine; K Shiiki
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Oct. 1997, [Reviewed] - Micromagnetics of soft magnetic thin films in presence of defects
T Komine; Y Mitsui; K Shiiki
JOURNAL OF APPLIED PHYSICS, Dec. 1995, [Reviewed]
MISC
- 〔Major achievements〕Introduction to LLG simulation
Takashi Komine
Magnetics Japan, 01 Apr. 2023, [Reviewed]
Lead - Influence of sample geometry on measured thermoelectric properties of Bi-Sb in magnetic fields
村田正行; 鈴木真理; 青山佳代; 長瀬和夫; 大島博典; 山本淳; 長谷川靖洋; 小峰啓史
応用物理学会秋季学術講演会講演予稿集(CD-ROM), 2023 - Materials design through the control of ion diffusion
藤岡正弥; 岩崎秀; KHURELBAATAR Zagarzuem; 小峰啓史; 森戸春彦; JEEM Melbert; 小野円佳; 小野円佳; 西井準治
応用物理学会秋季学術講演会講演予稿集(CD-ROM), 2020 - 薄膜エッジを利用したNi78Fe22/Alq3/Ni78Fe22ナノ接合の作製とその構造・電気伝導特性
三澤貴浩; 森澄人; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 海住英生; 西井準治
応用物理学会秋季学術講演会講演予稿集(CD-ROM), 01 Sep. 2016 - 漏洩磁場を利用したスピン量子十字デバイスの構造・磁気特性
海住英生; 森澄人; 三澤貴浩; 小峰啓史; 中村晃輔; 藤岡正弥; 西井準治
応用物理学会春季学術講演会講演予稿集(CD-ROM), 03 Mar. 2016 - Electronic states and transport properties in a quantum point contact under magnetic field
Aono Tomosuke; Kawamura Minoru; Ono Keiji; Komine Takashi
Meeting Abstracts of the Physical Society of Japan, 2016 - バルク熱電材料のゼーベック係数・抵抗率・熱拡散率の同時測定
本間亮英; 寺門宏樹; 長谷川靖洋; 村田正行; 山本淳; 小峰啓史; 森田寛之
応用物理学会春季学術講演会講演予稿集(CD-ROM), 2015 - 22pm1-E5 Fabrication of bismuth nanowires utilizing quartz glass and evaluation of thermoelectric properties
Murata Masayuki; Yamamoto Atsushi; Hasegawa Yasuhiro; Komine Takashi
マイクロ・ナノ工学シンポジウム, 20 Oct. 2014 - 23aTL-2 Shubnikov-de Haas oscillations of single crustal bismuth nanowire
Tsunemi Fumiaki; Murata Masayuki; Hasegawa Yasuhiro; Komine Takashi; Endo Akira
Meeting Abstracts of the Physical Society of Japan, 2011 - Thermomagnetic Effect in Thermoelectric Materials
KOMINE T.; HASEGAWA Y.; NAKAMURA H.
Bulletin of Topical Symposium of the Magnetics Society of Japan, 03 Aug. 2010 - 垂直磁気転写によるサーボ信号記録
杉田龍二; 小峰啓史
電子情報通信学会技術研究報告, Jun. 2010 - Influence of spacing between master and slave media on magnetic duplication characteristics for perpendicular recording media
T. Murata; A. Izumi; S. Okami; N. Sheeda; T. Komine; and R. Sugita
IEICE Trans. Electron., 01 Aug. 2007, [Reviewed] - Thermomagnetic Effect in Thermoelectric Materials
KOMINE T.; HASEGAWA Y.; NAKAMURA H.
Magnetics Japan, 01 Oct. 2006 - 熱電材料の磁場効果
T. Komine; Y. Hasegawa; H. Nakamura
まぐね, 01 Oct. 2006 - 斜め方向転写磁場が転写特性に及ぼす影響
岡見智史; 富川智史; 小峰啓史; 杉田龍二
電子情報通信学会技術研究報告, Jul. 2006 - 垂直磁気記録媒体へのサーボパターンの磁気転写の可能性
西川正一; 若松啓史; 市川健次; 宇佐利裕; 石岡利英; 安永正; 小峰啓史; 杉田龍二
電子情報通信学会技術研究報告, Jul. 2006 - 垂直磁気転写シミュレーション
村田剛史; 和泉昭彦; 小峰啓史; 杉田龍二
電子情報通信学会技術研究報告, Jul. 2006 - Performance and potential of high-density bit recording using patterned master contact duplication
M.Nagao; H.Kubota; M.Nishikawa; T.Yasunaga; T.Komine; R.Sugita
FUJIFILM RESEARCH & DEVELOPMENT, Mar. 2006 - The Current State and the Future Prospect of High-performance Thermoelectric Materials
梶川武信; 堀康彦; 山本淳; 生駒圭子; 今井義博; 江浦隆; 越後亮三; 小原春彦; 鎌田策雄; 木谷文一; 小峰啓史; 佐々裕美; 篠原嘉一; 丹治よう典; 津吉彰; 長谷川靖洋; 藤井一宏; 舟橋良次; 松山喜代志; 水上裕之; 吉野淳二; 藤田顕二郎; 阿武宏明; 申ウソク; 山中伸介; 永吉浩; 上村欣一; 河本邦仁; 陳立東; 西田勲夫; 東泉; 松原覚衛
電気学会技術報告, 2006 - The read-head sensor of semiconductor using magnetoresistance effect
TAKAYAMA Hiroki; KOMINE Takashi; SUGITA Ryuji; MURANOI Tetsuo
IEICE technical report. Magnetic recording, 08 Oct. 2004 - Dependence of Magnetic Contact Duplication Properties on Spacing between Master and Slave media
KANEKO Asako; KOMINE Takashi; SUGITA Ryuji; MURANOI Tetsuo; NISHIKAWA Masakazu; YASUNAGA Tadashi; NAGAO Makoto
IEICE technical report. Magnetic recording, 01 Oct. 2004, [Reviewed] - The first-principles calculation of ferromagnetic nanowire
TAKAHASHI T.; KOMINE T.; SUGITA R.; MURANOI T.; HASEGAWA Y.
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 21 Sep. 2004 - Numerical Analysis of magnetization process of magnetic nanocontacts
KOMINE Takashi; HASEGAWA Yasuhiro; SUGITA Ryuji; MURANOI Tetsuo
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 21 Sep. 2004 - Nonmagnetic semiconductors magetoresistive sensor with magnetic material
TAKAYAMA H.; KOMINE T.; SUGITA R.; MURANOI T.; HASEGAWA Y.
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 21 Sep. 2004 - Effect of magnetic layer thickness of master media on magnetic contact duplication properties
SUGITA R.; KOMINE T.; MURANOI T.; NISHIKAWA M.; YASUNAGA T.; NAGAO M.
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 01 Sep. 2003 - Thermoelectric property of Si/Ge superlattice at low temperature
浜辺 誠; 高橋 英昭; 中村 圭二; 山口 作太郎; 小峰 啓史; 江浦 隆; 岡本 庸一; 守本 純
Meeting abstracts of the Physical Society of Japan, 13 Aug. 2002 - Electronic structure calculation of transition metal thin film by EAS Method
Komine T.; Ishii N.; Kaneyoshi A.; Igarashi M.; Shiiki K.
Meeting abstracts of the Physical Society of Japan, 10 Sep. 2000 - Study of Spin Tunneling Magnetoresistive Effect by First Principle Band Calculation
Kaiju Hideo; Komine Takashi; Shiiki Kazuo
Meeting abstracts of the Physical Society of Japan, 10 Sep. 2000 - Study of magnetic property of Ni ultra thin film performed by first principle calculation
Kaneyoshi A.; Igarashi M.; Komine T.; Siiki K.
Meeting abstracts of the Physical Society of Japan, 10 Sep. 2000 - Electronic structure and magnetism of transition metal thin film calculated by Embedded Atomic Sphere Method
Komine T.; Ishii N.; Shiiki K.
Meeting abstracts of the Physical Society of Japan, 10 Mar. 2000 - study of Spin Tunneling Magnetoresistive Effect by First Principle Band Calculation
Kaiju Hideo.; Komine Takashi.; Shiiki Kazuo
Meeting abstracts of the Physical Society of Japan, 10 Mar. 2000 - 26pPSA-51 Possibility of ferromagnetic bct Ru
Watanabe Shoichi; Komine Takasi; Shiiki Kazuo
Meeting abstracts of the Physical Society of Japan, 03 Sep. 1999 - 25aPS-6 Application of Embedded Atomic Sphere method to non-periodic systems
KOMINE Takashi; SHIIKI Kazuo
Meeting abstracts of the Physical Society of Japan, 03 Sep. 1999 - 28a-PS-95 Structure and magnetic properties of Ru bilayer on Mo substrate
Watanabe S.; Komine T.; Shiiki K.
Meeting abstracts of the Physical Society of Japan, 15 Mar. 1999 - 30p-PSA-27 Self-consistent calcuation for electronic structure using Full-Potential Embedded Atomic Sphere Method
Komine Takashi; Shiiki Kazuo
Meeting abstracts of the Physical Society of Japan, 15 Mar. 1999 - Effect of crystal structures and stoichiometries on exchange fields for oxide NiO films
GOUDA W.; KOBAYASHI T.; SHIIKI K.
Meeting abstracts of the Physical Society of Japan, 05 Sep. 1998 - First Principle Calculation of Co/Cu Superlattice with Interfacial Mixing
FUJII Y.; KOMINE T.; KAI T.; SHIIKI K.
Meeting abstracts of the Physical Society of Japan, 10 Mar. 1998 - Magnetization process of MR element
HIRATA Y.; KOMINE T.; SHIIKI K.
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 01 Sep. 1996 - Micromagnetics of soft magnetic thin film with defect
KOMINE T.; SHIIKI K.
日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan, 01 Sep. 1995
Lectures, oral presentations, etc.
- 変形自由層を有する磁気渦スピントルク発振器を用いた物理リザバーの数値解析
堀住耕太; 千葉貴裕; 小峰啓史
第72回 応用物理学会春季学術講演会, 15 Mar. 2025
20250314, 20250318 - Anharmonic potential induced nonlinear and chaotic dynamics of spintronic oscillator
R. Tatsumi; T. Chiba; T. Komine; H. Matsueda
2025 Joint MMM-Intermag Conference, 12 Jan. 2025
20250110, 20250114 - Numerical analysis of vortex spin torque oscillator with an additional free layer"
K. Horizumi; T. Chiba; T. Komine
2025 Joint MMM-Intermag Conference, Jan. 2025
202501, 202501 - Chaotic magnetization dynamics in a spintronic oscillator with tunable anharmonic potential
R. Tatsumi; T. Chiba; T. Komine; H. Matsueda
The 8th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 7th Symposium on International Joint Graduate Programs in Materials Science and Spintronics (CRCGP-MSSP2024), 18 Nov. 2024 - Chaotic dynamics of spintronic oscillator with tunable anharmonic potential
R. Tatsumi; T. Chiba; T. Komine; H. Matsueda
第85回 応用物理学会秋季学術講演会, 17 Sep. 2024
20240916, 20240920 - Ultrastrong Coupled Magnon-Polaritons in Dynamical inductors
T. Chiba; T. Komine; T. Aono
International Conference on Magnetism 2024, 01 Jul. 2024
20240630, 20240705 - 動的インダクタにおける超強結合マグノン‐ポラリトン
千葉貴裕; 小峰啓史; 青野友祐
第71回 応用物理学会春季学術講演会, 23 Mar. 2024
20240322, 20240325 - c-Al2O3基板上へのMg3Sb2薄膜のエピタキシャル成長における基板温度の影響
切通望; 鮎川瞭人; 坂根駿也; 小峰啓史; 鵜殿治彦
第71回 応用物理学会春季学術講演会, 23 Mar. 2024
20240322, 20240325 - 〔Major achievements〕Microwave Transmission Theory for Ultrastrong-Coupled Magnon-Polariton in Dynamical Inductors
T. Chiba; T. Komine; and T. Aono
Symposium on Frontier of Terahertz Science X, 28 Nov. 2023
20231220, 20231221 - 〔Major achievements〕Microwave Transmission Theory for On-Chip Ultrastrong-Coupled Magnon-Polariton in Dynamical Inductors
T. Chiba; T. Komine; and T. Aono
The 7th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 6th Symposium on International Joint Graduate Program in Materials Science and Spintronics, 28 Nov. 2023
20231128, 20231201 - 〔Major achievements〕Numerical analysis of write-error-rate in magnetic-topological-insulator-based devices with voltage-controlled magnetization switching
T. Komine; and T. Chiba
The 68th Annual Magnetism and Magnetic Materials (MMM) Conference, 03 Nov. 2023
20231030, 20231103 - 〔Major achievements〕Magnetic printing characteristics of burst signals by using double magnet mater media
T. Komine
The 68th Annual Magnetism and Magnetic Materials (MMM) Conference, 03 Nov. 2023
20231030, 20231103 - 〔Major achievements〕ダブルマグネット型マスター媒体によるバースト信号の転写特性
小峰啓史
第47回 日本磁気学会学術講演会, 27 Sep. 2023
20230927, 20230929 - 〔Major achievements〕アモルファスTbFeCo 磁性薄膜における熱電テンソルの組成依存性
小峰啓史,安藤亮
第47回 日本磁気学会学術講演会, 27 Sep. 2023
20230927, 20230929 - 〔Major achievements〕トポロジカル絶縁体/磁性絶縁体二層膜における強結合磁気共鳴
千葉貴弘,小峰啓史,青野知祐
第47回 日本磁気学会学術講演会, 27 Sep. 2023
20230927, 20230929 - 〔Major achievements〕Voltage-control of magnetization dynamics by using topological insulators
T. Komine; T. Chiba
第47回 日本磁気学会学術講演会 / Symposium on "Advanced local probe techniques in nanoscaled magnetism, 27 Sep. 2023, [Invited]
20230927, 20230929 - 〔Major achievements〕同一試料を用いたBi-Sbの磁場中熱電性能指数の評価
村田正行,鈴木真理,青山佳代,長瀬和夫,大島博典,山本淳,長谷川靖洋,小峰啓史
第20回日本熱電学会学術講演会（TSJ2023）, 20 Sep. 2023
20230925, 20230927 - 〔Major achievements〕Bi-Sbの磁場中の熱電物性測定における試料形状の影
村田正行,鈴木真理,青山佳代,長瀬和夫,大島博典,山本淳,長谷川靖洋,小峰啓史
第84回 応用物理学会秋季学術講演会, 20 Sep. 2023
20230919, 20230923 - 〔Major achievements〕TbFeCo磁性薄膜の異常ネルンスト効果に寄与する因子分析
安藤亮,小峰啓史
第84回 応用物理学会秋季学術講演会, 20 Sep. 2023
20230919, 20230923 - 〔Major achievements〕Write-error rate estimation of voltage-controlled magnetization switching in a magnetic-topological-insulator-based device
T Komine; S. Watahiki; T. Chiba
2023 Intermag Conference, 18 May 2023, IEEEE, MSJ
20230515, 20230519 - Room-temperature magnetoresistance in nanojunctions consisting of C8-BTBT molecules sandwiched between two magnetic thin-film edges
M. Matsuzaka; Y. Sasaki; K. Hayashi; T. Misawa; T. Komine; T. Akutagawa; M. Fujioka; J. Nishii; and H. Kaiju
2023 Intermag Conference, 16 May 2023, IEEEE, MSJ
20230515, 20230519 - 磁性トポロジカル絶縁体素子の電圧制御磁化反転における書き込みエラー率の数値解析
小峰啓史,綿引詩門,千葉貴裕
第70回 応用物理学会春季学術講演会, 15 Mar. 2023
20230315, 20230318 - 〔Major achievements〕Observation of spin signal in molecular nanojunctions utilizing magnetic thin-film edges at room temperature
M. Matsuzaka1; Y. Sasaki; K. Hayashi; T. Misawa; T. Komine; T. Akutagawa; M. Fujioka; J. Nishii; H. Kaiju
The 23rd RIES-Hokudai International Symposium, 05 Dec. 2022
20221205, 20221206 - 〔Major achievements〕Room-temperature magnetoresistance in Ni78Fe22/C8-BTBT/Ni78Fe22 nanojunctions fabricated using magnetic thin-film edges
M. Matsuzaka; Y. Sasaki; K. Hayashi; T. Misawa; T. Komine; T. Akutagawa; M. Fujioka; J. Nishii; H. Kaiju
MNC 2022, 35th International Microprocesses and Nanotechnology Conference, 10 Nov. 2022
20221108, 20221111 - 〔Major achievements〕Combination dependence of printing characteristics in double magnet master media for energy-assisted magnetic recording
T. Komine
The 67th Annual Magnetism and Magnetic Materials (MMM) Conference, 01 Nov. 2022
20221031, 20221104 - 〔Major achievements〕Observation of magnetoresistance in Ni78Fe22/C8-BTBT/Ni78Fe22 nanojunctions at room temperature
M. Matsuzaka; Y. Sasaki; K. Hayashi; T. Misawa; T. Komine; T. Akutagawa; M. Fujioka; J. Nishii; H. Kaiju
第83回 応用物理学会秋季学術講演会, 22 Sep. 2022
20220920, 20220923 - 〔Major achievements〕Type-II Na-Siクラスレートにおける Naイオンの拡散機構解明
岩﨑秀,小峰啓史,森田一軌,澁谷泰蔵,森戸春彦,藤岡正弥
金属学会2022年秋期講演大会, 21 Sep. 2022
20220920, 20220923 - マイクロマグネティックス(微細領域の磁性とデバイス応用)
小峰啓史
第45回日本磁気学会サマースクール, 30 Jun. 2022, 日本磁気学会, [Invited]
20220630, 20220702 - マイクロマグネティックス(微細領域の磁性とデバイス応用)
小峰啓史
第46回日本磁気学会サマースクール, 31 May 2023, 日本磁気学会, [Invited]
20220531, 20220602 - 〔Major achievements〕Naイオンの異方的拡散制御による Si 同素体のバルク単結晶開発
藤岡 正弥,岩崎 秀,西井 準治,森戸春彦,小峰 啓史
日本セラミックス協会, 10 Mar. 2022
20220310, 20220312 - 〔Major achievements〕Voltage-control of magnetic properties in topological-insulator/magnetic-insulator bilayers
T. Chiba; A. O. Leon; T. Komine
2022 Joint MMM-Intermag Conference, 12 Jan. 2022, [Invited]
20220110, 20220114 - 〔Major achievements〕Master structure dependence of double magnet master on magnetic printing performance onto energy-assisted magnetic recording
T. Komine
2022 Joint MMM-Intermag Conference, 12 Jan. 2022
20220110, 20220114 - トポロジカル絶縁体を活用した磁化ダイナミクスの電圧制御とその応用
千葉貴裕,アレハンドロ・レオン,小峰啓史
第240回研究会／第95回ナノマグネティックス専門研究会 「磁気物性に関する計算科学の最前線」, 12 Dec. 2022
20211212, 20211212 - Voltage-driven magnetization switching in topological-insulator-based magnetic heterostructures
T. Chiba; Alejandro O. Leon; T. Komine
Joint Conference: 24th International Conference on Electronic Properties of Two-Dimensional Systems / 20th International Conference on Modulated Semiconductor Structures (EP2Ds-24/MSS-20), 31 Oct. 2021
20211031, 20211102 - 磁気を利用した熱電変換素子
小峰啓史
JST新技術説明会【先端ものづくり技術】, 14 Sep. 2021, [Invited]
20210914, 20210914 - トポロジカル絶縁体/磁性絶縁体二層膜における磁気特性の電圧制御
千葉貴裕,Alejandro O. Leon,小峰啓史
第45回日本磁気学会学術講演会, 31 Aug. 2021
20210830, 20210902 - ダブルマグネット型マスター媒体による磁気転写特性のマスター構造依存性
小峰啓史
第45回日本磁気学会学術講演会, 30 Aug. 2021
20210830, 20210902 - 〔Major achievements〕Double magnet master media for magnetic printing onto energy-assisted magnetic recording media
T. Komine
INTERMAG 2021, 19 Apr. 2021
20210419, 20210630 - マイクロマグネティックス(微細領域の磁性とデバイス応用)
小峰啓史
第44回日本磁気学会サマースクール, 10 Jun. 2021, 日本磁気学会, [Invited]
20210609, 20210611 - マイクロマグネティックス(微細領域の磁性とデバイス応用)
小峰啓史
第43回日本磁気学会サマースクール, 04 Dec. 2020, 日本磁気学会, [Invited]
20201202, 20201204 - 磁性トポロジカル絶縁体の非対称表面を利用した両極性伝導型熱電素子
千葉貴裕; 小峰啓史; 高橋三郎
第67回 応用物理学会春季学術講演会, 14 Mar. 2020 - トポロジカル絶縁体Bi2−xSbxTe3−ySey表面の熱電特性:イオン不純物の影響
千葉貴裕; 小峰啓史; 高橋三郎
第67回 応用物理学会春季学術講演会, 13 Mar. 2020 - Ni78Fe22/Mq3 (M=Al, Er)/Ni78Fe22 nanoscale junction devices utilizing magnetic thin-film edges
Y. Sasaki; R. Msiska; T. Misawa; S. Mori; T. Komine; N. Hoshino; T. Akutagawa; M. Fujioka; J. Nishii; and H. Kaiju
The 3rd workshop on functional materials science, 09 Dec. 2019 - Electric and magnetic properties in Ni78Fe22/Mq3(M=Al, Er)/Ni78Fe22 nanoscale junction devices utilizing magnetic thin-film edges
The 13th Pacific Rim Conference of Ceramic Societies(PACRIM13), 30 Oct. 2019 - Bi ナノワイヤーにおける格子圧縮が輸送特性に及ぼす影響
小峰啓史; 青野友祐; 村田正行; 長谷川靖洋
第80回 応用物理学会秋季学術講演会, 19 Sep. 2019 - 直径400nm級Biナノワイヤーの熱・電流磁気効果
村田正行; 冨岡平祐; 青山佳代; 山本淳; 長谷川靖洋; 小峰啓史
第80回 応用物理学会秋季学術講演会, 19 Sep. 2019 - 石英ガラステンプレートを用いたBi ナノワイヤーの作製と熱電物性評価
小峰啓史; 村田正行; 長谷川靖洋
第165回 日本金属学会秋期講演大会, 12 Sep. 2019, [Invited] - First principle band calculations of Mg2Si thin films
M. Takizawa; T. Komine; H. Udono; and T. Aono
APAC SILICIDE 2019(The 5th Asia-Pacific Conference on Semiconductor Silicides and Related Materials), 20 Jul. 2019 - 積層構造磁性体ナノワイヤにおける電流誘起磁壁移動
小峰
電子情報通信学会，映像メディア学会 マルチメディアストレージ研究会， 磁気記録・情報ストレージ研究会 共催(MMS, IEICE-MRIS), 14 Jun. 2019 - スパッタリングで形成したTa薄膜における電気抵抗の歪み誘起1/f 雑音
上杉良太; 小峰啓史; 水野将臣; 安藤亮; 赤羽秀郎
第66回 応用物理学会春季学術講演会, 10 Mar. 2019 - Biナノワイヤーにおける格子圧縮が量子効果に及ぼす影響
小峰啓史; 青野友祐; 村田正行; 長谷川靖洋
第66回 応用物理学会春季学術講演会, 10 Mar. 2019 - TbFeCo 磁性薄膜における輸送特性の組成依存性
安藤亮; 小峰啓史
第66回 応用物理学会春季学術講演会, 09 Mar. 2019 - Voltage-induced Magnetocapacitance in Magnetic Tunnel Junctions
H. Kaiju; T. Misawa; T. Nagahama; T. Komine; O. Kitakami; M. Fujioka; J. Nishii; and G. Xiao
2019 Joint MMM-Intermag Conference, 16 Jan. 2019, MMM - Electric and magnetic properties of Ni78Fe22/Alq3/Ni78Fe22 nanoscale junction devices utilizing magnetic thin-film edges
Y. Sasaki; R. Msiska; T. Misawa; S. Mori; T. Komine; N. Hoshino; T. Akutagawa; M. Fujioka; J. Nishii; and H. Kaiju
2019 Joint MMM-Intermag Conference, 16 Jan. 2019, MMM - 磁性薄膜エッジを利用したNi78Fe22/Alq3/Ni78Fe22ナノ接合素子の電気磁気特性
佐々木悠馬; ムシスカロビン; 三澤貴浩; 森澄人; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 西井準治; 海住英生
第79回 応用物理学会秋季学術講演会, 21 Sep. 2018 - Transport measurements of bismuth nanowire embedded in quartz template by nano-fabrication
Y. Hasegawa; H. Morita; M. Otsuka; T. Arisaka; T. Komine
37th annual international conference on thermoelectrics (ICT), 03 Jul. 2018 - 面内磁場下の量子ポイントコンタクトにおける動的核スピン偏極
青野友祐; Peter Stano; 川村稔; 大野圭司; 小峰啓史
日本物理学会 第73回年次大会(2018年), 23 Mar. 2018 - 磁性薄膜における電極配置が異常ネルンスト起電力に及ぼす影響
安藤亮; 小峰啓史
第65回 応用物理学会春季学術講演会, 17 Mar. 2018 - 磁性薄膜エッジを利用したNi78Fe22/Alq3/Ni78Fe22ナノ接合素子に関する研究
佐々木悠馬; 三澤貴浩; 森澄人; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 西井準治; 海住英生
第５３回応用物理学会北海道支部/第１４回日本光学会北海道支部合同学術講演会, 06 Jan. 2018 - Study of Ni78Fe22/Alq3/Ni78Fe22 nanoscale junction devices utilizing thin-film edges
Y. Sasaki; T. Misawa; S. Mori; T. Komine; N. Hoshino; T. Akutagawa; M. Fujioka; J. Nishii; H. Kaiju
The 18th RIES-HOKUDAI International Symposium, 01 Dec. 2017 - Novel behaviors of anomalous Hall effect in TbFeCo thin films under high magnetic field
R. Ando; T. Komine; S. Sato; S. Kaneta; Y. Hara
62nd Annual Magnetism and Magnetic Materials (MMM) Conference, 09 Nov. 2017, MMM - Geometrical contribution to anomalous Nernst effect in TbFeCo thin films
R. Ando; T. Komine
62nd Annual Magnetism and Magnetic Materials (MMM) Conference, 09 Nov. 2017, MMM - Ni78Fe22/Alq3/Ni78Fe22ナノ接合素子の電気伝導特性
三澤貴浩; 森澄人; 佐々木悠馬; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 西井準治; 海住英生
第78回 応用物理学会秋季学術講演会, 08 Sep. 2017 - フェリ磁性TbFeCoにおける熱電効果の素子形状依存性
安藤亮; 小峰啓史
第78回 応用物理学会秋季学術講演会, 07 Sep. 2017 - Ni78Fe22/Alq3/Ni78Fe22接合素子における量子・古典状態間遷移領域に関する研究
佐々木悠馬; 三澤貴浩; 森澄人; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 西井準治; 海住英生
第78回 応用物理学会秋季学術講演会, 05 Sep. 2017 - Macroscale thermoelectric materials with low dimensional nanoscale features
T. Ikeda; M. Murata; T. Komine; H. Kiue; and Y. Hasegawa
36th annual international conference on thermoelectrics (ICT), 01 Aug. 2017 - "磁場中の量子ポイントコンタクトにおける電子状態と電気伝導 II
青野友祐; 川村稔; 大野圭司; Peter Stano; 小峰啓史
日本物理学会 第72回年次大会, 17 Mar. 2017 - ビスマスの格子変形がバンド構造および輸送特性に及ぼす影響
小峰啓史; 青野友祐; 村田正行; 長谷川靖洋
第64回 応用物理学会春季学術講演会, 16 Mar. 2017 - フェリ磁性TbFeCo 薄膜における異常ホール効果の膜厚依存性
安藤亮; 小峰啓史; 佐藤汐莉; 金田真悟; 原嘉昭
第64回 応用物理学会春季学術講演会, 14 Mar. 2017 - 積層型磁性ナノワイヤにおける電流誘起磁壁移動
小峰啓史
第32回日本磁気学会光機能磁性デバイス・材料専門研究会/ 第32回光機能磁性デバイス・材料専門研究会, 13 Mar. 2017, [Invited] - Influence Of Structural Inversion Asymmetry On Current-induced Domain Wall Motion In Bilayer Nanowires With Ferro- and Antiferromagnetic Coupling
T. Komine; and T. Aono
61th Annual Magnetism and Magnetic Materials (MMM) Conference, 03 Nov. 2016, MMM - 積層型磁性ナノワイヤにおける電流誘起磁壁移動
小峰啓史
北海道大学電子科学研究所学術講演会, 30 Sep. 2016, 北海道大学電子科学研究所学術交流委員会，応用物理学会北海道支部・エンレイソウの会, [Invited] - 薄膜エッジを利用したNi78Fe22/Alq3/Ni78Fe22ナノ接合の作製とその構造・電気伝導特性
三澤貴浩; 森澄人; 小峰啓史; 星野哲久; 芥川智行; 藤岡正弥; 海住英生; 西井準治
第77回 応用物理学会秋季学術講演会, 16 Sep. 2016 - 石英ガラス中の直径110 nm Biナノワイヤーへの端部電極形成
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
第77回 応用物理学会秋季学術講演会, 15 Sep. 2016 - ビスマスの格子変形が輸送特性に及ぼす影響
小峰啓史; 青野友祐; 村田正行; 長谷川靖洋
第77回 応用物理学会秋季学術講演会, 14 Sep. 2016 - フェリ磁性TbFeCo薄膜における異常ホール効果の強磁場特性
小峰啓史; 安藤亮; 金田真悟; 佐藤汐莉; 原嘉昭
第77回 応用物理学会秋季学術講演会, 13 Sep. 2016 - 直径 110 nm Biナノワイヤーの熱電物性測定
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
第十三回日本熱電学会学術講演会（TSJ2016）, 07 Sep. 2016 - Numerical analysis of surface states in Bi nanostructure
T. Komine; T. Aono; M. Murata; Y. Hasegawa
35th annual international conference on thermoelectrics & 1st asian conference on thermoelectrics (ICT & ACT 2016), 01 Jun. 2016 - Nano-scale electrical contact onto 110 nm Bi nanowire encapsulated in quartz template utilizing FIB-SEM
M. Murata; A. Yamamoto; Y. Hasegawa; T. Komine
35th annual international conference on thermoelectrics & 1st asian conference on thermoelectrics (ICT & ACT 2016), 01 Jun. 2016 - Biナノワイヤーの磁場中における電気物性の解析
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
2016年第63回応用物理学会春季学術講演会, 20 Mar. 2016 - ディラック電子中の量子ドットによる熱電特性の解析
青野友祐; 小峰啓史
日本物理学会第71回年次大会2016, 20 Mar. 2016 - 積層構造ナノワイヤにおける電流誘起磁壁移動の数値解析
小峰啓史; 青野友祐; 安藤亮
2016年第63回応用物理学会春季学術講演会, 19 Mar. 2016 - 漏洩磁場を利用したスピン量子十字デバイスの構造・磁気特性
海住英生; 森澄人; 三澤貴浩; 小峰啓史; 中村晃輔; 藤岡正弥; 西井準治
2016年第63回応用物理学会春季学術講演会, 19 Mar. 2016 - ビスマスナノ構造における表面状態の数値解析
青野友祐; 小峰啓史; 村田正行; 長谷川靖洋
2016年第63回応用物理学会春季学術講演会, 19 Mar. 2016 - Micromagnetic analysis of current-induced domain wall motion in a bilayer nanowire with synthetic antiferromagnetic coupling
T. Komine; and T. Aono
2016 Joint MMM-Intermag Conference, 12 Jan. 2016 - 積層型ナノワイヤにおける層間交換結合が電流誘起磁壁移動に及ぼす影響
小峰啓史; 青野友佑
第76回 応用物理学会秋季学術講演会, 13 Sep. 2015 - バンド構造の温度依存性を考慮したBi-Sb合金の熱電物性の解析
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
第十二回日本熱電学会学術講演会（TSJ2015）, 07 Sep. 2015 - Numerical analysis of surface spin states on bismuth thin films
K. Saito; H. Sawahata; T. Komine; and T. Aono
21st International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS) & 17th International Conference on Modulated Semiconductor Structures(MSS), 28 Jul. 2015 - Magnetic field dependences of thermoelectric properties of a sintered Bi90Sb10 alloy
M. Murata; A. Yamamoto; Y. Hasegawa; T. Komine
The 34th International & 13th European Conference on Thermoelectrics (ICT&ECT), 30 Jun. 2015 - Anomalous Nernst effect of perpendicularly magnetic anisotropy TbFeCo Thin films
R. Ando; T. Komine; and Y. Hasegawa
The 34th International & 13th European Conference on Thermoelectrics (ICT&ECT), 30 Jun. 2015 - Enhancement of Seebeck coefficient in Bi nanowires by electric field effect
T. Komine; T. Aono; Y. Nabatame; M. Murata and Y. Hasegawa
The 34th International & 13th European Conference on Thermoelectrics (ICT&ECT), 30 Jun. 2015 - ビスマス薄膜表面におけるスピン分極の数値解析
齊藤和雄; 青野友祐; 小峰啓史
日本物理学会 第70回年次大会（2015年）, 23 Mar. 2015 - 焼結法により作製したBi-Sb合金の磁場中の熱電物性
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
2015年 第62回応用物理学会春季学術講演会, 13 Mar. 2015 - バルク熱電材料のゼーベック係数・抵抗率・熱拡散率の同時測定
本間亮英; 寺門宏樹; 長谷川靖洋; 村田正行; 山本淳; 小峰啓史; 森田寛之
2015年 第62回応用物理学会春季学術講演会, 12 Mar. 2015 - 補償組成近傍TbFeCo垂直磁気異方性薄膜の異常ネルンスト効果
安藤亮; 加藤健; 飯村修志; 小峰啓史; 長谷川靖洋
2015年 第62回応用物理学会春季学術講演会, 11 Mar. 2015 - Fabrication and Thermoelectric Properties of Individual and Single-Crystal Bismuth Nanowires Encapsulated in Quartz Templates
M. Murata; H. Terakado; R. Honma; A. Yamamoto; Y. Hasegawa; and T. Komine
MRS, 01 Dec. 2014 - ビスマス薄膜の表面電子状態の数値計算
齊藤和雄; 青野友祐; 小峰啓史
平成26年度（第22回）電気学会東京支部茨城支所研究発表会, 22 Nov. 2014 - Influence of eddy current on current-induced domain wall motion in a magnetic nanowire
T. Komine; T. Aono; and R. Ando
59th Annual Magnetism and Magnetic Materials Conference(MMM), 07 Nov. 2014, MMM - Structural and Magnetic Properties of Co-based Spin Quantum Cross Devices Utilizing Stray Magnetic Fields
H. Kaiju; H. Kasa; T. Komine; T. Abe; S. Mori; T. Misawa; and J. Nishii
59th Annual Magnetism and Magnetic Materials Conference(MMM), 06 Nov. 2014, MMM - First principle study of magnetocrystalline anisotropy in hcp Co with stacking faults
T. Komine; and S. Saito
59th Annual Magnetism and Magnetic Materials Conference(MMM), 05 Nov. 2014, MMM - 石英ガラスを利用したBi ナノワイヤーの作製と熱電物性の評価
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
日本機械学会第６回マイクロ・ナノ工学シンポジウム, 20 Oct. 2014 - Bi-Sb系バルク材料の熱伝導率評価
村田正行; 山本淳; 本間亮英; 寺門宏樹; 長谷川靖洋; 小峰啓史
第十一回日本熱電学会学術講演会 (TSJ2014), 29 Sep. 2014, 日本熱電学会 - バルク熱電材料の熱拡散率とゼーベック係数の同時測定法の開発
本間亮英; 寺門宏樹; 長谷川靖洋; 小峰啓史; 森田寛之
第十一回日本熱電学会学術講演会 (TSJ2014), 29 Sep. 2014, 日本熱電学会 - 引き伸ばし法を用いて作製したBiマイクロ/ナノワイヤーの熱電物性の直径依存性
寺門宏樹; 本間亮英; 長谷川靖洋; 小峰啓史; 森田寛之; 山嵜正明; 寺嶋徹
第十一回日本熱電学会学術講演会 (TSJ2014), 29 Sep. 2014, 日本熱電学会 - 3ω法によるワイヤー系熱電材料の熱伝導率評価
森田寛之; 寺門宏樹; 本間亮英; 長谷川靖洋; 小峰啓史
第十一回日本熱電学会学術講演会 (TSJ2014), 29 Sep. 2014, 日本熱電学会 - 鋳型圧入法によるBiナノワイヤーの開発と熱電物性の評価
村田正行; 山本淳; 寺門宏樹; 本間亮英; 長谷川靖洋; 小峰啓史
2014年 第75回応用物理学会秋季学術講演会, 18 Sep. 2014, 応用物理学会 - Bi-Sb系バルク材料の作製と熱電物性の評価
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
2014年 第75回応用物理学会秋季学術講演会, 18 Sep. 2014, 応用物理学会 - 直径700nm Biナノワイヤーのホール係数測定とキャリア移動度評価
村田正行; 山本淳; 長谷川靖洋; 小峰啓史
2014年 第75回応用物理学会秋季学術講演会, 18 Sep. 2014, 応用物理学会 - 漏洩磁場を用いたスピン量子十字デバイスの磁気特性
森澄人; 三澤貴浩; 笠晴也; 小峰啓史; 阿部太郎; 海住英生; 西井準治
2014年 第75回応用物理学会秋季学術講演会, 17 Sep. 2014 - 積層欠陥を含むhcp Co の磁気異方性に関する第一原理計算
小峰啓史; 齊藤伸
第38回 日本磁気学会学術講演会, 05 Sep. 2014, 日本磁気学会 - Spin quantum cross devices utilizing stray magnetic field
S. Mori; T. Misawa; H. Kasa; T. Komine; T. Abe; H. Kaiju; J. Nishii
The 1st Korea-Japan Bilateral Workshop on Functional Materials Science Thermoelectrics, Spintronics, Low-dimensional Materials, and Soft Matter-, 01 Aug. 2014 - Magnetic Properties of Spin Quantum Cross Devices Utilizing Stray Magnetic Fields
H. Kaiju; H. Kasa; T. Komine; T. Abe; T. Misawa and J. Nishii
2014 MRS Spring Meeting & Exhibit, 21 Apr. 2014, MRS - 熱電対からの熱流出に伴うゼーベック係数測定の誤差評価
本間亮英; 村田正行; 寺門宏樹; 長谷川靖洋; 小峰啓史
2014年第61回応用物理学会春季学術講演会, 19 Mar. 2014 - Biナノワイヤーの結晶方向が輸送特性に及ぼす影響
内田仁志; 青天目悠太; 小峰啓史; 青野友祐; 村田正行; 長谷川靖洋
2014年第61回応用物理学会春季学術講演会, 18 Mar. 2014 - 引き伸ばし法を用いて作製したBiワイヤーの熱電特性評価
寺門宏樹; 村田正行; 本間亮英; 長谷川靖洋; 小峰啓史; 山嵜正明; 寺嶋徹
2014年第61回応用物理学会春季学術講演会, 18 Mar. 2014 - 補償組成近傍TbFeCo薄膜のスピン分極率
伊藤,小峰; 杉田; 上野; 山口; Bang Do,粟野
第37回日本磁気学会学術講演会, 05 Sep. 2013 - Magnetostatic interaction between continuous and granular layers in multilayered nanowires for current-induced domain wall motion
A. Ooba; T. Komine; and R. Sugita
Joint European Magnetic Symposia (JEMS), 11 Sep. 2012 - Magnetic domain structure in thin CoPt perpendicular magnetic anisotropy films
Y. Kawada; M. Onose; R. Tojo; T. Komine; R. Sugita
Joint European Magnetic Symposia (JEMS), 11 Sep. 2012 - Magnetization reversal process in ECC media
A. Oyama; T. Komine; and R. Sugita
Joint European Magnetic Symposia (JEMS), 11 Sep. 2012 - Biナノワイヤー熱電変換素子の抵抗率の温度依存性
村田,常見; 齋藤; 代田,藤原; 長谷川,小峰
日本熱電学会, 27 Aug. 2012 - Numerical analysis of transport properties in BiSb nanowires
Y. Nabatame; T. Matsumoto; Y. Ichige; T. Komine; R. Sugita; M. Murata; and Y. Hasegawa
The 31st International & 10th European Conference on Thermoelectrics (ICT&ECT), 11 Jul. 2012 - Numerical analysis of transport properties in BiSb nanowires
Y. Nabatame; T. Matsumoto; Y. Ichige; T. Komine; R. Sugita; M. Murata; and Y. Hasegawa
The 31st International & 10th European Conference on Thermoelectrics (ICT&ECT), 11 Jul. 2012 - Influence of interlayer coupling on domain wall motion in multilayered nanowires for achieving high density bit
A. Ooba; T. Komine; and R. Sugita
International Magnetics Conference INTERMAG 2012, 10 May 2012 - Effect of applied magnetic field direction on magnetic cluster state of perpendicular recording media
S. Sato; Y. Yamaguchi; T. Komine; and R. Sugita
International Magnetics Conference INTERMAG 2012, 08 May 2012 - 石英ガラス中のBiナノワイヤー上へのホール測定用局所電極の形成
村田,山本,常見; 長谷川,小峰
2012年春季 第58回応用物理学関係連合講演会, 17 Mar. 2012 - スペーシングが磁気転写特性に及ぼす影響
大山; 小野瀬; 川崎; 小峰,杉田
電気学会東京支部茨城支所発表会, 19 Nov. 2011 - 磁壁ピン止めを有すナノワイヤにおける電流誘起磁壁移動のシミュレーション
岩井,大庭; 小峰,杉田
電気学会東京支部茨城支所発表会, 19 Nov. 2011 - Biワイヤーの熱電特性及びその磁場効果
小峰,長谷川
磁気学会スピンエレクトロニクス専門研究会・ 応用物理学会スピントロニクス研究会(共催), 14 Nov. 2011, [Invited] - Current-induced domain wall motion in a multilayered nanowire for achieving high density bit
T. Komine; A. Ooba; and R. Sugita
56th Conference on Magnetism and Magnetic Materials(MMM), 02 Nov. 2011 - 積層構造垂直磁気異方性マスター媒体による垂直磁気転写
川崎,小野瀬; 小峰,杉田
第35回日本磁気学会学術講演会, 29 Sep. 2011 - クロストラック方向における磁気転写特性
川前; 小峰,杉田
第35回日本磁気学会学術講演会, 29 Sep. 2011 - スペーシングが磁気転写特性に及ぼす影響
小野瀬; 川崎; 小峰,杉田
第35回日本磁気学会学術講演会, 29 Sep. 2011 - ECC 媒体における磁気クラスタサイズの磁場印加方向依存性
山口,川田; 小峰,杉田
第35回日本磁気学会学術講演会, 29 Sep. 2011 - CoPt垂直磁気異方性膜の磁気特性の膜厚依存性
川田; 小野瀬; 川崎,大山; 小峰,杉田
第35回日本磁気学会学術講演会, 29 Sep. 2011 - 磁壁ピン止めを有するナノワイヤにおける電流誘起磁壁移動のシミュレーション
大庭,藤村; 小峰,杉田
第35回日本磁気学会学術講演会, 28 Sep. 2011 - 集束イオンビーム加工を利用したBiナノワイヤー熱電変換素子の4端子測定
村田,山本,常見; 長谷川,小峰
日本熱電学会, 08 Aug. 2011 - Fourwire resistance measurements on bismuth nanowire encased in quartz template utilizing focused ion beam processing
M. Murata; H. Yamamoto; F. Tsunemi; Y. Hasegawa; T. Komine
30th International Conference on Thermoelectrics, 20 Jul. 2011 - Effect of the pinning field on critical current density for current-induced domain wall motion in perpendicular magnetic anisotropy nanowires
A. Ooba; Y. Fujimura; K. Takahashi; T. Komine; and R. Sugita
Recent Trends in Nanomagnetism, Spintronics and their Applications, 03 Jun. 2011 - Micromagnetic study for effect of applied magnetic field direction on magnetic cluster size of perpendicular recording media
Y. Kawada; Y. Yamaguchi; Y. Tanaka; T. Kawamae; T. Komine and R. Sugita
International Magnetics Conference INTERMAG 2011, 27 Apr. 2011 - Magnetization distribution of Tb/in2 class hard disks recorded with bit printing and edge printing
T. Murakoshi; T. Komine and R. Sugita
International Magnetics Conference INTERMAG 2011, 27 Apr. 2011 - ビスマス微細構造における電子状態
澤畠; 小峰,青野
2011年春季 第57回応用物理学関係連合講演会, 25 Mar. 2011 - 表面ポテンシャルがBiナノワイヤーの輸送特性に及ぼす影響
青天目; 松本; 市毛; 小峰; 杉田; 青野,村田; 中村; 長谷川
2011年春季 第57回応用物理学関係連合講演会, 24 Mar. 2011 - 無冷媒冷凍機を用いた熱電物性測定装置の温度制御法
常見,中村; 村田,山本; 長谷川,小峰
2011年春季 第57回応用物理学関係連合講演会, 24 Mar. 2011 - 熱リークを制御した定常法による熱伝導測定システムの構築
山本,中村; 村田,常見; 長谷川,小峰
2011年春季 第57回応用物理学関係連合講演会, 24 Mar. 2011 - 収束イオンビーム加工を利用した Bi ナノワイヤーの4端子測定
村田,中村; 山本,常見; 長谷川,小峰
2011年春季 第57回応用物理学関係連合講演会, 24 Mar. 2011 - 直径 725 nm Bi ナノワイヤーの熱電特性測定及び解析
中村,村田; 山本,常見; 長谷川,小峰
2011年春季 第57回応用物理学関係連合講演会, 24 Mar. 2011 - GM冷凍機における精密温度制御(2) -リアルタイム測定とその解析-
中村,常見; 長谷川; 村田; 山本,小峰
2010 年度秋季低温工学・超電導学会, 02 Dec. 2010 - Reduction of intrinsic critical current density on current-induced domain wall motion by using a ferrimagnetic nanowire
T. Komine; K. Takahashi; A. Ooba; and R. Sugita
55th Conference on Magnetism and Magnetic Materials(MMM), Atlanta, 18 Nov. 2010 - Domain-like behavior of magnetization process in magnetic checker pattern
T. Komine; Y. Tanaka and R. Sugita
55th Conference on Magnetism and Magnetic Materials(MMM), Atlanta, 18 Nov. 2010 - Biナノワイヤーにおける表面ポテンシャルがナノワイヤー の輸送特性に及ぼす影響
青天目; 市毛; 松本; 小峰; 杉田; 青野; 長谷川
電気学会東京支部茨城支所発表会, 14 Nov. 2010 - マスター媒体の初期磁化が磁気転写特性に及ぼす影響
川田,川崎; 田中; 小峰,杉田
電気学会東京支部茨城支所発表会, 14 Nov. 2010 - 垂直磁気異方性細線における電流誘起磁壁移動のマイクロ マグネティックシミュレーション
大庭,高橋; 小峰,杉田
電気学会東京支部茨城支所発表会, 14 Nov. 2010 - ビスマス微細構造における電子状態
澤畠; 小峰,青野
電気学会東京支部茨城支所発表会, 14 Nov. 2010 - 垂直磁気異方性を有する磁性細線における電流誘起磁壁移動のマイクロマグネティックシミュレーション
小峰
スピニクス特別研究会, 29 Oct. 2010, [Invited] - マスターパターンサイズが磁気転写特性に及ぼす影響
川前; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - マスター媒体の初期磁化が磁気転写特性に及ぼす影響
川崎,田中; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - 垂直磁気異方性マスター媒体の磁区が 磁気転写特性に及ぼす影響
田中; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - マスター媒体のパターン形状がビット転写特性に及ぼす影響
小野瀬; 川崎,川田; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - 磁気転写及び磁気ヘッドで記録されたハードディスクの 磁化状態
村越; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - 低飽和磁化垂直磁気異方性細線における電流誘起磁壁移動の マイクロマグネティックシミュレーション
高橋,大庭; 村上; 小峰,杉田
日本磁気学会学術講演会, 06 Sep. 2010 - 直径500nm級のBiナノワイヤー熱電変換素子の開発と評価
村田正行; 中村太紀; 山本浩也; 長谷川靖洋; 小峰啓史
日本熱電学会, 19 Aug. 2010 - 熱電材料の磁場効果
小峰; 長谷川; 中村
第173回日本磁気学会研究会, 03 Aug. 2010, [Invited] - ECC媒体への垂直磁気転写シミュレーション
川前,村越; 小峰,杉田
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 09 Jul. 2010 - CoPt垂直マスターの転写特性における組成依存性
小野瀬; 川崎,田中; 小峰,杉田
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 08 Jul. 2010 - 垂直磁気転写法によるサーボ信号記録
杉田龍二; 小峰啓史
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 09 Jun. 2010 - High-precision temperature control using a GM cryocooler
中村太紀; 長谷川靖洋; 村田正行; 山本浩也; 小峰啓史
2010年度春季低温工学・超電導学会, 13 May 2010 - Biナノワイヤーにおける輸送特性の有効質量依存性
市毛雄基; 松本剛; 池谷政洋; 小峰啓史; 杉田龍二; 青野知佑; 村田正行; 中村太紀; 長谷川靖洋
2010年春季 第56回応用物理学関係連合講演会, 19 Mar. 2010 - Biナノワイヤーにおける表面ポテンシャルが ナノワイヤー輸送特性に及ぼす影響
松本剛; 市毛雄基; 池谷政洋; 小峰啓史; 杉田龍二; 青野知佑; 村田正行; 中村太紀; 長谷川靖洋
2010年春季 第56回応用物理学関係連合講演会, 19 Mar. 2010 - Biナノワイヤーにおける熱電特性の結晶方向依存性
村田正行; 中村太紀; 山本浩也; 長谷川靖洋; 小峰啓史
2010年春季 第56回応用物理学関係連合講演会, 19 Mar. 2010 - ナノワイヤー形状での熱電材料の熱伝導率変化
長谷川靖洋; 村田正行; 中村太紀; 山本浩也; 小峰啓史
2010年春季 第56回応用物理学関係連合講演会, 19 Mar. 2010 - High-precision temperature stabilization using a GM cryocooler
中村太紀; 長谷川靖洋; 村田正行; 山本浩也; 小峰啓史
2010年春季 第56回応用物理学関係連合講演会, 19 Mar. 2010 - Influence of exchange coupling on current-driven domain wall motion in a nanowire
T. Komine; K. Takahashi; H. Murakami and R. Sugita
11th Joint MMM-Intermag Conference, Washington, 21 Jan. 2010 - CoPt垂直マスターの転写特性における組成依存性
川崎龍太; 小西弘孝; 田中康貴; 小峰啓史; 杉田龍二
電気学会茨城支所大会, 22 Nov. 2009 - UV-NIL を用いたナノパターンの作製検討
松本剛; 池谷政洋; 市毛雄基; 高橋光太; 東川玲子; 櫻井淳光; 小峰啓史; 杉田龍二
電気学会茨城支所大会, 22 Nov. 2009 - 磁性細線における磁壁移動の電流パルス依存性
小峰啓史; 村上宏; 杉田龍二
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 08 Oct. 2009 - 磁性細線における磁壁移動の交換スティフネス定数依存性
高橋,村上; 小峰,杉田
日本磁気学会学術講演会, 15 Sep. 2009 - 垂直磁気異方性ナノワイヤにおけるマルチビットの磁壁移動
村上,高橋; 小峰,杉田
日本磁気学会学術講演会, 15 Sep. 2009 - CoPt垂直マスターの転写特性における組成依存性
小西,川崎; 田中; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2009 - ECC媒体への垂直磁気転写シミュレーション
村越; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2009 - マスターパターン形状が磁気転写特性に及ぼす影響
田辺; 齋藤,シダ; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2009 - パターンの異なるマスターによる垂直磁気転写
田中,小西; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2009 - Micromagnetic study of magnetic printing onto various slave media
T. Komine; T. Murakoshi; Y. Tanaka; Y. Sakaguchi; and R. Sugita
International Conference on Magnetics, 30 Jul. 2009 - Micromagnetic analysis of current-driven domain wall motion of multi-bit in a perpendicular magnetic anisotropy nanowire
H. Murakami; T. Komine and R. Sugita
International Conference on Magnetics, 28 Jul. 2009 - A technique how to contact between bismuth nano-wire edge and electrodes
M. Murata; D. Nakamura; Y. Hasegawa; T. Komine; D. Uematsu; S. Nakamura; and T. Taguchi
28th International Conference on Thermoelectrics, 27 Jul. 2009 - Thermoelectric properties of 500nm-order individual bismuth nano-wire using quartz template
D. Nakamura; M. Murata; Y. Hasegawa; T. Komine; D. Uematsu; S. Nakamura; and T. Taguchi
28th International Conference on Thermoelectrics, 27 Jul. 2009 - Numerical analysis of effective thermal conductivity in microwire array element
T. Komine; M. Kuraishi; T. Teramoto; R. Sugita; Y. Hasegawa; M. Murata; and D. Nakamura
28th International Conference on Thermoelectrics, 27 Jul. 2009 - Bi ナノワイヤー熱電素子の作製法と熱電特性
村田正行; 中村太紀; 長谷川靖洋; 小峰啓史; 田口隆志; 中村.真一郎; Vladimir Jovovic; Joseph; P. Heremans
応用物理学会, 31 Mar. 2009 - 平均自由行程を考慮したBiナノワイヤーの熱電特性の解析
中村太紀; 村田正行; 長谷川靖洋; 小峰啓史; 田口隆志; 中村.真一郎; Vladimir Jovovic; Joseph; P. Heremans
応用物理学会, 31 Mar. 2009 - UV-NILを用いたナノ構造磁性体の作製検討
高橋光太; 櫻井淳光; 東川玲子; 小峰啓史; 杉田龍二; 加藤健; 浅野俊之
電気学会茨城支所大会, 06 Dec. 2008 - 磁性細線における磁壁移動の電流パルス幅依存性
村上; 小峰,杉田
日本磁気学会学術講演会, 15 Sep. 2008 - マスターパターンの傾きが垂直磁気転写特性に及ぼす影響
齋藤,坂口; 岡見; 小峰,杉田
日本磁気学会学術講演会, 14 Sep. 2008 - Analysis of waveforms from magnetic printed perpendicular hard disk
シダ,岡見; 坂口; 小峰,杉田
日本磁気学会学術講演会, 14 Sep. 2008 - 磁性ナノクラスターにおける静磁場エネルギーのMCおよびLLGシ ミュレーション比較
山口,鈴木; 入戸野; 小峰,高木
日本磁気学会学術講演会, 14 Sep. 2008 - 垂直異方性マスター媒体を用いた磁気転写の数値解析
中沢,小西,シダ,在原; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2008 - 磁気転写及びヘッド記録された媒体からの出力波形
田辺,岡見; 齋藤,シダ; 小峰,杉田
日本磁気学会学術講演会, 13 Sep. 2008 - CoPt垂直磁気異方性膜の磁区構造
小西,在原; 村上; 小峰,杉田
日本磁気学会学術講演会, 12 Sep. 2008 - 拡大モデルによる垂直磁気転写解析
田邊,齋藤; Sheeda,小峰; 杉田
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 10 Jul. 2008 - 強磁性ナノワイヤにおける切り込みが磁壁移動に及ぼす影響
村上; 小峰,杉田
電子情報通信学会，映像メディア学会 磁気記録・情報ストレージ研究会, 10 Jul. 2008 - A Comparison of Magnetostatic Energy between Monte Carlo and LLG Simulations for Magnetic Nano-Clusters
K. Yamaguchi; K. Suzuki; O. Nittono; T. Komine and T. Takagi
CEFC2008, 11 May 2008 - Influence of Notch Shape and Size on Current-Driven Domain Wall Motions in a Magnetic Nanowire
T. Komine; H. Murakami; T. Nagayama; and R. Sugita
IEEE International Magnetics Conference 2008, 09 May 2008 - Feasibility of Perpendicular Magnetic Printing at 1 Tbit/inch2
T. Komine; T. Murata; Y. Sakaguchi; Y. Hosoya; Nurul Sheeda Suhaimi and R. Sugita
IEEE International Magnetics Conference 2008, 09 May 2008 - Numerical study of magneto-Seebeck coefficients of Bi-Sb alloys
T. Komine; T. Teramoto; R. Sugita and Y. Hasegawa
応用物理学会, 30 Mar. 2008 - Thermoelectric properties of Bi micro/nano wire array elements pressured into mold made from quartz template
Y. Hasegawa; H. Nakano; D. Nakamura; H. Morita; T. Komine; T. Taguchi; S. Nakamura
応用物理学会, 29 Mar. 2008 - Ni-SiO2グラニュラー薄膜の磁気特性
櫻井淳光; 石井智; 飯田優; 杉本太一; 小峰啓史; 杉田龍二
電気学会茨城支所大会, 01 Dec. 2007 - 高飽和磁化を有する垂直磁気異方性膜の作製
在原康貴; 杉田龍二; 小峰啓史
電気学会茨城支所大会, 01 Dec. 2007 - Analysis of Waveform from Perpendicular Magnetic Printed Media
N. Sheeda; S. Okami; T. Komine; and R. Sugita
9th Perpendicular Magnetic Recording Conference (PMRC), 16 Oct. 2007 - 1Tbit/inch2垂直磁気転写の可能性
村田剛史; 坂口雄一; 和泉昭彦; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 13 Sep. 2007 - 垂直磁気転写におけるマスター磁性膜及び軟磁性裏打ち層のマ イクロマグネティックシミュレーション
中澤光貴; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 13 Sep. 2007 - スレーブ媒体の磁気特性が垂直磁気転写特性に及ぼす影響
坂口雄一; 村田剛史; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 13 Sep. 2007 - 位相サーボ対応垂直磁気転写の拡大モデルによる解析
齊藤俊明; 安田浩子; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 13 Sep. 2007 - 電流分布を考慮した磁壁駆動のマイクロマグネティックシミュ レーション
小峰啓史; 永山剛広; 杉田龍二
日本応用磁気学会学術講演会, 13 Sep. 2007 - 蒸着テープを用いた垂直磁気転写解析
NURUL SHEEDA; 岡見智史; 小峰啓史; 杉田龍二
電子情報通信学会 磁気記録・情報ストレージ研究会, 08 Jun. 2007 - Influence of Band Structure of Bi-Sb Alloy on Magneto-Seebeck Coefficient
T. Teramoto; S. Yamamoto; M. Kuraishi; T. Komine; R. Sugita; Y. Hasegawa; H. Nakamura
26th International Conference On Thermoelectrics, 04 Jun. 2007 - Magneto-resistivity reduction using microwire array structure element
Y. Hasegawa; H. Nakano; H. Morita; T. Komine; and H. Nakamura
26th International Conference on Thermoelectrics, 04 Jun. 2007 - BiSb合金のバンド構造が磁気ゼーベック係数に及ぼす影響
寺本貴之; 山本真司; 倉石正寛; 小峰啓史; 長谷川靖洋; 中村浩章; 杉田龍二
応用物理学会, 30 Mar. 2007 - 磁場中におけるBiマイクロワイヤーアレイ素子のパワーファ クター評価
中野博文; 長谷川靖洋; 神戸勇貴; 森田寛之; 小峰啓史
応用物理学会, 30 Mar. 2007 - Biナノワイヤー熱電素子の開発
長谷川靖洋; 中野博文; 神戸勇貴; 森田寛之; 小峰啓史; 中村浩章
応用物理学会, 30 Mar. 2007 - 微小面積を持つ膜面垂直通電型抵抗素子の作製検討
飯田優; 石井智; 杉本太一; 櫻井淳光; 小峰啓史; 杉田龍二
電気学会茨城支所大会, 05 Dec. 2006 - Influence of spacing between master and slave media on magnetic duplication characteristics for perpendicular recording media
T. Murata; A. Izumi; S. Okami; N. Sheeda; T. Komine; R. Sugita
The 8th Asian Symposium on Information Storage Technology, 09 Nov. 2006 - 垂直磁気転写された磁化状態のマイクロマグネティック シミュレーション
小峰啓史; 和泉昭彦; 村田剛史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - 拡大モデルを用いた垂直磁気転写解析
安田浩子; 永利賢; 鈴木麻希子; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - マスターの飽和磁化が垂直磁気転写特性に及ぼす影響
村田剛史; 和泉昭彦; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - 垂直磁気転写特性に及ぼす軟磁性裏打ち層の影響
和泉昭彦; 村田剛史; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - 磁気転写技術の高密度記録性能
若松哲史; 西川正一; 市川健次; 宇佐利裕; 長尾 信; 石岡利英; 安永正; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - 蒸着テープを用いた垂直磁気転写解析
岡見智史; 丑米梨恵; 小峰啓史; 杉田龍二
日本応用磁気学会学術講演会, 11 Sep. 2006 - Numerical analysis of effective thermal conductivity in microwire array element
M. Kuraishi; T. Komine; T. Teramoto; R. Sugita; and Y. Hasegawa
25th International Conference on Thermoelectrics, 17 Aug. 2006 - Influence of Energy Band Structure on Thermoelectric Properties of Bismuth in the Presence of Magnetic Field
T. Teramoto; T. Komine; M. Kuraishi; R. Sugita; and Y. Hasegawa
25th International Conference on Thermoelectrics, 17 Aug. 2006 - Geometrical dependence of magnetoresistivity in bismuth microwire arrays
H. Nakano; Y. Ishikawa; Y. Hasegawa; H. Morita; and T. Komine
25th International Conference on Thermoelectrics, 17 Aug. 2006 - Thermoelectric property of Cu2O thin film deposited by Reactive Ion Plating method
H. Uchiyama; Y. Hasegawa; H. Morita; A. Kurokouchi; K. Wada; and T. Komine
25th International Conference on Thermoelectrics, 17 Aug. 2006 - 斜め方向転写磁場が転写特性に及ぼす影響
岡見智史; 富川智史; 小峰啓史; 杉田龍二
電子情報通信学会 磁気記録・情報ストレージ研究会, 06 Jul. 2006 - 垂直磁気転写シミュレーション
村田剛史; 和泉昭彦; 小峰啓史; 杉田龍二
電子情報通信学会 磁気記録・情報ストレージ研究会, 06 Jul. 2006 - 面内磁気記録媒体への短ビットの磁気転写の性能と可能性
長尾信; 久保田秀幸; 西川正一; 安永正; 小峰啓史; 杉田龍二
電子情報通信学会 磁気記録・情報ストレージ研究会, 06 Jul. 2006 - 垂直磁気記録媒体へのサーボパターンの磁気転写の可能性
西川正一; 若松啓史; 市川健次; 宇佐利裕; 長尾 信; 石岡利英; 安永 正; 小峰啓史; 杉田龍二
電子情報通信学会 磁気記録・情報ストレージ研究会, 06 Jul. 2006 - Influence of Soft-Under-Layer in Perpendicular Media on Magnetic Contact Duplication Characteristics
A. Izumi; Y. Nagahama; T. Komine; T. Murata; R. Sugita; M. Nagao; M. Nishikawa and T.Yasunaga
International Magnetics Conference INTERMAG 2006, 11 May 2006 - First-Principles Calculation of atomic-sized Ni nanocontacts
T. Takahashi; T. Komine; R. Sugita and Y. Hasegawa
International Magnetics Conference INTERMAG 2006, 11 May 2006 - Potential of Servo Pattern Printing on PMR Media With High Density Servo Signal Pattern
M. Nishikawa; S. Wakamatsu; K. Ichikawa; T. Usa; M. Nagao; T. Ishioka; T.Yasunaga; T. Komine and R. Sugita
International Magnetics Conference INTERMAG 2006, 11 May 2006 - Biマイクロワイヤーアレイ素子の熱電特性の形状依存性
中野博文; 石川最朗; 長谷川靖洋; 森田寛之; 小峰啓史
応用物理学会, 26 Mar. 2006 - Cu-SiO2グラニュラー中間層を用いたスピンバルブ 素子の磁気抵抗
杉本太一; 高玉晃宏; 小峰啓史; 杉田龍二; 村野井徹夫
電気学会茨城支所大会, 26 Nov. 2005 - 磁気転写されたスレーブ媒体における磁化状態解析
永利賢; 小峰啓史; 杉田龍二; 村野井徹夫
電気学会茨城支所大会, 26 Nov. 2005 - 磁気転写特性のマスターパターン傾斜角依存性
安田浩子; 金子朝子; 小峰啓史; 杉田龍二; 村野井徹夫
日本応用磁気学会, 21 Sep. 2005
Courses
Affiliated academic society
Research Themes
- Low power operation of magnetic topological insulator devices by controlling interface
Grant-in-Aid for Scientific Research (B)
Ibaraki University
01 Apr. 2024 - 31 Mar. 2028 - 高速スクリーニングによる高効率トポロジカル熱電材料の創成
Sep. 2024 - Mar. 2028 - Development of measurement for thermoelectric materials by using TDIS method
Grant-in-Aid for Challenging Research (Exploratory)
Apr. 2023 - Mar. 2026 - Study of giant Seebeck effect in nanowire thermoelectric elements by controlling nano-scale structures
Grant-in-Aid for Scientific Research(B)
Apr. 2022 - Mar. 2025 - 〔Major achievements〕磁壁移動型メモリの低消費電力動作に向けた界面構造制御
基盤研究（B)
Apr. 2020 - Mar. 2024 - Study for giant Seebeck coefficient using one-dimensional single crystam bismuth quantum nanoiwire by nano-fabrication
Grant-in-Aid for Scientific Research (B)
Saitama University
01 Apr. 2018 - 31 Mar. 2022 - Transport phenomena in bismuth nanowires
Fostering Joint International Research (B)
Oct. 2018 - Mar. 2022 - Improvement of high speed in magnetic nanowire memories by utilizing electric-controlled Rashba effect
Grant-in-Aid for Scientific Research(B)
Apr. 2016 - Mar. 2020 - Improvement of thermoelectric properties by introducing quantum dot in Dirac electron systems
Grant-in-Aid for Scientific Research(C)
Apr. 2015 - Mar. 2019 - Creation of large magnetocapacitance devices using magnetic nanoscale junctions
Grant-in-Aid for Scientific Research (B)
Hokkaido University
01 Apr. 2015 - 31 Mar. 2018 - Development of bulk thermoelectric materials with low-dimensional quantum structure
Grant-in-Aid for challenging Exploratory Research
Apr. 2016 - Mar. 2018 - Study of giant Seebeck effect in nanowire thermoelectric elements by controlling nano-scale structures
Grant-in-Aid for Scientific Research(B)
Apr. 2015 - Mar. 2018 - 革新的ナノスケール制御による高効率熱電変換システムの実現
Oct. 2015 - Oct. 2017 - Observation of room temperature Skyrmions in magnetic nanostructral materials and their low current density drive
Grant-in-Aid for Challenging Exploratory Research
Hokkaido University
01 Apr. 2015 - 31 Mar. 2017 - Study of high-density multi-layered nanowire memories with low drive current and high speed
Grant-in-Aid for Scientific Research(C)
Apr. 2013 - Mar. 2016 - エネルギーアシスト記録及び瓦記録方式ハードディスク対応超高速サーボ信号転写の研究
Grant-in-Aid for Scientific Research(C)
Apr. 2012 - Mar. 2015 - Study of high density nanowire memory with ferrimagnetic multilayer structure
Grant-in-Aid for Scientific Research(C)
Apr. 2010 - Mar. 2013 - Study of transport property for thermoelectric nanowire using nano-processing
Grant-in-Aid for Scientific Research (C)
Saitama University
2011 - 2013 - Development of novel magnetic printing technology for servo signal writing on hard disks over 1 Tbit/square inch
Grant-in-Aid for Scientific Research (B)
Ibaraki University
2009 - 2011 - Domain wall motion devices by controlling spin current distribution
Grant-in-Aid for Young Scientists (B)
Ibaraki University
2007 - 2009 - Investigation on high recording density magnetic contact duplication using patterned master media
Grant-in-Aid for Scientific Research (C)
Ibaraki University
2004 - 2006
Industrial Property Rights
- 特許第7316579号, 特願2018-236300, 熱電変換素子,熱電変換方法
小峰啓史,安藤亮 - 特許第6963347号, 特開2020-35506, 特願2018-162816, 磁気パターン転写用マスター媒体及びその製造方法，磁気パターン転写方法
小峰啓史 - 特願2018-236300, 熱電変換素子,熱電変換方法
小峰啓史,安藤亮 - USP7982984, Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium
Yoichi Nishida, Hideyuki Kubota, Masakazu Nishikawa, Makoto Nagao, Ryuji Sugita, Takashi Komine - USP7974028, Magnetic transfer master carrier and magnetic transfer method
Yoichi Nishida, Hideyuki Kubota, Makoto Nagao, Ryuji Sugita, Takashi Komine - 2010-108587, 2009-221291, 磁気転写用マスター担体の製造方法、磁気転写用マスター担体、及び磁気転写方法
久保田秀幸,長尾信,杉田龍二,小峰啓史 - USP0079892, Method for producing magnetic transfer master carrier, magnetic transfer master carrier and magnetic transfer method
Hideyuki Kubota, Makoto Nagao, Ryuji Sugita, Takashi Komine - 2009-295250, 2008-149540, 磁気転写用マスター担体、磁気転写方法、及び磁気記録媒体
西田陽一,久保田秀幸,西川正一,長尾信,杉田龍二,小峰啓史 - USP0303627, USP477350, Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium
NISHIDA, Kubota, Nishikawa, Nagao, Sugita, Komine - 2009-259372, 2008-255075, 磁気転写用マスター担体、及び磁気転写方法
西田陽一,久保田秀幸,長尾信,杉田龍二,小峰啓史 - 2009-252341, 2008-103362, 磁気転写用マスター担体、磁気転写方法、及び垂直磁気記録媒体
諸岡篤,杉田龍二,小峰啓史 - 2009-252297, 2008-99621, 磁気転写用マスター担体、磁気転写方法、及び磁気記録媒体
西田陽一,久保田秀幸,西川正一,長尾信,杉田龍二,小峰啓史 - 2009-238288, 2008-81779, 磁気転写用マスター担体、及びその製造方法
西川正一,久保田秀幸,長尾信,杉田龍二,小峰啓史 - 2009-146557, 2009-146557, 2008-255719, 磁気転写用マスター担体、及びこれを用いた磁気転写方法
西田陽一,西川正一,久保田秀幸,杉田龍二,小峰啓史 - EP2063421, Master carrier for magnetic transfer and magnetic recording medium manufactured using the same
Nishida Yoichi, Nishikawa Masakazu, Kubota Hideyuki, Komine Takashi, Sugita Ryuji - EPC 08253788.7 -1232, EPC 08253788.7 -1232, EPC 08253788.7 -1232, Master carrier for magnetic transfer and magnetic recording medium manufactured using the same...
Nishida, Nishikawa, Kubota, Komine, Sugita - 2008-267753, 2007-95557, 磁気転写方法及び磁気記録媒体
長尾 信, 藤原 直人, 安永 正, 杉田 龍二, 小峰 啓史 - EP1975929, Method of magnetic transfer and magnetic recording medium
YASUNAGA, SUGITA, FUJIWARA, NAGAO, KOMINE - 2008-165884, 2006-353108, 磁気転写方法、マスター記録媒体、垂直磁気記録媒体及び磁気記録再生装置
- 2008-165885, 2006-353109, 磁気転写方法、磁気転写装置及び垂直磁気記録媒体
若松 哲史, 小松 和則, 安永 正, 長尾 信, 杉田 龍二, 小峰 啓史 - 2008-88759, 磁気転写用マスター担体，及び磁気転写方法
長尾信, 杉田龍二, 小峰啓史 - US20090244747A1, MAGNETIC TRANSFER MASTER CARRIER AND METHOD FOR PRODUCING THE SAME
Nishikawa, Kubota, Nagao, Sugita, Komine - 2007-302165, 磁気転写用マスター担体，及びこれを用いた磁気転写方法
長尾信, 杉田龍二, 小峰啓史 - 2007-97296, 磁気転写法
杉田龍二,小峰啓史,長尾信,他 - 特開2007-12980, 特願2005-193632, 熱電変換素子およびその製造方法
小峰啓史 - 特開2006-31896, 特願2004-213027, 振幅サーボパターン,磁気記録媒体およびその製造方法，その製造方法において用いられる磁気転写用パターンドマスター担体,ならびに磁気記録再生装置
小峰啓史,杉田龍二,安永正,長尾信 - EP20050015743, EP1619671, Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus
Takashi Komine, Ryuji Sugita, Tadashi Yasunaga, Makoto Nagao - 特願 2002-265834, 熱電材料の製造方法
- 特願 2002-204563, 温度測定装置
Social Contribution Activities
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茨城大学「土曜アカデミー」, 14 Dec. 2024 - 14 Dec. 2024 - (プレスリリース) 熱電変換技術の研究開発効率を100万倍に！ トポロジカル物質と高速スクリーニング技術で実現目指す
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茨城大学, 04 Oct. 2024 - 04 Oct. 2024 - エネルギーを使わない素子とエネルギーを作る素子 - 情報とエネルギーの関係を考える -
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茨城高専 先端科学技術講演会, 14 Jun. 2023 - 14 Jun. 2023 - 〔Major achievements〕マイクロマグネティックス(微細領域の磁性とデバイス応用)
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30 Jun. 2022 - 30 Jun. 2022 - 〔Major achievements〕マイクロマグネティックス(微細領域の磁性とデバイス応用)
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31 May 2022 - 31 May 2022 - 〔Major achievements〕エネルギーを使わない素子とエネルギーを作る素子
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02 Aug. 2021 - 02 Aug. 2021 - 〔Major achievements〕マイクロマグネティックス(微細領域の磁性とデバイス応用)
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10 Jun. 2021 - 10 Jun. 2021 - 〔Major achievements〕マイクロマグネティックス(微細領域の磁性とデバイス応用)
lecturer
04 Dec. 2020 - 04 Dec. 2020
