Magnetic dynamics of ferromagnets by pure spin current injections

• Project/Area Number: 25820135
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Kansai University (2015-2016); University of Tsukuba (2013-2014)
• Principal Investigator: Honda Syuta 関西大学, システム理工学部, 助教 (00402553)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: スピン注入磁化反転 / 純スピン流 / マイクロマグネティクス / スピントランスファートルク / スピン伝導 / スピン偏極伝導 / 高速磁化反転

Outline of Final Research Achievements

We have investigated the magnetization dynamics with the pure spin current injection into the ferromagnetic metal by using the numerical simulaton based on the Landau-Lifshiz equation. We have found that the magnetization swithing time is decreased and the switching probability is incresed by ottimizing the spin polarization direction of the pure spin current. We have found that the magnetic skyrmion domain are driven in oblique directions when the pure spin current is injected.

Research Products

• [Journal Article] Electric-current-induced dynamics of bubble domains in a ferrimagnetic Tb/Co multilayer wire below and above the magnetic compensation point (2017)
  • Author(s): M. Tanaka, S. Sumitomo, N. Adachi, S. Honda, H. Awano, and Ko Mibu
  • Journal Title: AIP Advances Volume: 7 Issue: 5
  • DOI: 10.1063/1.4974067
  • NAID: 130006708971
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Robust spin-current injection in lateral spin valves with two-terminal Co2FeSi spin injectors (2017)
  • Author(s): S. Oki, T. Kurokawa, S. Honda, S. Yamada, T. Kanashima, H. Itoh, and K. Hamaya
  • Journal Title: AIP Advances Volume: 7 Issue: 5
  • DOI: 10.1063/1.4972852
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Magnetic properties and interfacial characteristics of all-epitaxial Heusler-compound stacking structures (2016)
  • Author(s): S. Yamada, S. Honda, J. Hirayama, M. Kawano, K. Santo, K. Tanikawa, T. Kanashima, H. Itoh, and K. Hamaya
  • Journal Title: Physical Review B Volume: 94 Issue: 9 Pages: 094435-094435
  • DOI: 10.1103/physrevb.94.094435
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electrical detection of magnetic domain wall in Fe4N nanostrip by negative anisotropic magnetoresistance effect (2016)
  • Author(s): T. Gushi, K. Ito, S. Higashikozono, F. Takata, H. Oosato, Y. Sugimoto, K. Toko, S. Honda, T. Suemasu
  • Journal Title: Journal of Applied Physics Volume: 120 Issue: 11 Pages: 113903-113903
  • DOI: 10.1063/1.4962721
  • NAID: 120007129353
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Controlling magnetic domain wall positions with an external magnetic field and a low spin-polarized current in chamfered L-shaped ferromagnetic thin ribbons (2016)
  • Author(s): S. Honda, D. Yamamoto, T. Ohsawa, T. Gushi, K. Ito, and T. Suemasu
  • Journal Title: Journal of Physics D: Applied Physics Volume: 49 Issue: 38 Pages: 385002-385002
  • DOI: 10.1088/0022-3727/49/38/385002
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Computing surface Green's functions for semi-infinite systems on multilayered periodic structures (2016)
  • Author(s): T. Miyata, R. Naito, S. Honda
  • Journal Title: Journal of Engineering Mathematics Volume: 97 Issue: 1 Pages: 25-32
  • DOI: 10.1007/s10665-015-9794-x
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] First-principles study of energy band gap of single-layer Mo1-xCrxS2 (2016)
  • Author(s): A. Ueda, S. Honda, H. Imamura
  • Journal Title: Japanese Journal of Applied Physics Volume: 55 Issue: 2 Pages: 028003-028003
  • DOI: 10.7567/jjap.55.028003
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Current-induced dynamics of bubble domains in perpendicularly magnetized TbFeCo wires (2015)
  • Author(s): M. A. Tanaka, H. Kanazawa, S. Sumitomo, S. Honda, K. Mibu, H. Awano
  • Journal Title: Applied Physics Express Volume: 7 Issue: 7 Pages: 073002-073002
  • DOI: 10.7567/apex.8.073002
  • NAID: 210000137584
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Mechanism and control of antiferromagnetic coupling in Fe/Fe3O4 junctions (2015)
  • Author(s): S. Honda, H. Yanagihara, J. Inoue, E. Kita, H. Itoh, and Ko Mibu
  • Journal Title: Physica Procedia Volume: 75 Pages: 1080-1087
  • DOI: 10.1016/j.phpro.2015.12.178
  • Peer Reviewed / Open Access
• [Journal Article] Conduction and Spin Transport via Edge States in Randomly Hydrogenated Graphene Nano-Ribbon (2015)
  • Author(s): K. Inuzuka, S. Honda, and N. Sano
  • Journal Title: JPS Conference Proceedings Volume: 5
  • DOI: 10.7566/jpscp.5.011016
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Magnetization reversal of permalloy film by pure spin current injection: relation between reversal time and injected surface (2015)
  • Author(s): S. Honda and T. Kimura
  • Journal Title: JPS Conf. Proc Volume: 5 Pages: 011017-011017
  • DOI: 10.7566/jpscp.5.011017
  • Peer Reviewed / Open Access
• [Journal Article] Magnetization and Conductance of Asymmetrically Hydrogenated Graphene Nanoribbons (2014)
  • Author(s): Syuta Honda, Kouhei Inuzuka, Norio Ota, Nobuyuki Sano, Takeshi Inoshita
  • Journal Title: J. Phys. D: Appl. Phys. Volume: 47 Issue: 48 Pages: 485004-485004
  • DOI: 10.1088/0022-3727/47/48/485004
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Effect of Spin Polarization Direction on Magnetization Reversal using Pure Spin Current Injection (2013)
  • Author(s): Syuta Honda, Hiroyoshi Itoh
  • Journal Title: Journal of the Magnetics Society of Japan Volume: 37 Issue: 5 Pages: 338-341
  • DOI: 10.3379/msjmag.1308R001
  • NAID: 130003369179
  • ISSN: 1882-2924, 1882-2932
  • Peer Reviewed
• [Presentation] Robust spin-current injection in lateral spin valves with twoterminal Co2FeSi spin injectors (2016)
  • Author(s): S. Oki, T. Kurokawa, S. Honda, S. Yamada, T. Kanashima, H. Itoh, and K. Hamaya
  • Organizer: The 61st Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Louisiana (USA)
  • Year and Date: 2016-10-31
  • Int'l Joint Research
• [Presentation] Electric-current-induced dynamics of bubble domains in ferrimagnetic Tb/Co multilayer wires below and above the magnetic compensation point (2016)
  • Author(s): M. Tanaka, S. Sumitomo, N. Adachi1, S. Honda, H. Awano, and Ko Mibu
  • Organizer: The 61st Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Louisiana (USA)
  • Year and Date: 2016-10-31
  • Int'l Joint Research
• [Presentation] 強磁性絶縁体を用いたMTJにおけるMR効果 (2016)
  • Author(s): 左手宏毅，伊藤博介，本多周太
  • Organizer: 第40回 日本磁気学会学術講演会
  • Place of Presentation: 金沢大学角間キャンパス (石川県)
  • Year and Date: 2016-09-05
• [Presentation] Tb/Coフェリ磁性多層膜細線に生成した磁壁の電流駆動 (2016)
  • Author(s): 住友翔，足立紀子，田中雅章，本多周太，壬生攻，粟野博之
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学
  • Year and Date: 2016-03-19
• [Presentation] Domain wall dynamics in ferrimagnetic Tb/Co multilayer wires below and above the magnetic compensation point (2016)
  • Author(s): 田中雅章，住友翔，足立紀子，本多周太，壬生攻，粟野博之
  • Organizer: 第63回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2016-03-19
• [Presentation] 異方性磁気抵抗効果を利用したFe4N 細線における磁壁の電流検出 (2016)
  • Author(s): 具志俊希、伊藤啓太、東小薗創真、都甲薫、大里啓孝、杉本喜正、本多周太、末益崇
  • Organizer: 第63回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2016-03-19
• [Presentation] フェリ磁性体多層膜細線における磁壁駆動の電気的測定 (2016)
  • Author(s): 足立紀子，住友翔，田中雅章，本多周太，壬生攻，粟野博之
  • Organizer: 2015 IEEE Magnetics Society 名古屋支部若手研究会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2016-02-03
• [Presentation] 垂直磁気異方性を持つ磁性細線に生成したバブル磁区の電流に対する挙動調査 (2015)
  • Author(s): 田中雅章，住友翔，足立紀子，金沢大樹，本多周太，壬生攻，粟野博之
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学
  • Year and Date: 2015-09-16
• [Presentation] パーマロイ2層薄膜における磁気渦の高周波共鳴 (2015)
  • Author(s): 本多周太, 土屋智, 大澤友克, 家形諭, 木村崇
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学
  • Year and Date: 2015-09-16
• [Presentation] 垂直磁気異方性を持つ磁性細線に生成したバブル磁区の電流下での挙動 (2015)
  • Author(s): 田中雅章，住友翔，足立紀子，本多周太，壬生攻，粟野博之
  • Organizer: 第39回日本磁気学会講演会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2015-09-08
• [Presentation] Electric-current-induced dynamics of bubble domains in TbFeCo wires of various compositions with different cap layers (2015)
  • Author(s): M. A. Tanaka, H. Kanazawa, S. Sumitomo, S. Honda, K. Mibu, H. Awano
  • Organizer: 20th International Conference on Magnetism
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2015-07-05
  • Int'l Joint Research
• [Presentation] Mechanism and control of antiferromagnetic coupling in Fe/Fe3O4 junctions (2015)
  • Author(s): J. Inoue, S. Honda, H. Yanagihara, E. Kita, H. Itoh, K. Mibu
  • Organizer: 20th International Conference on Magnetism
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2015-07-05
  • Int'l Joint Research
• [Presentation] Control of domain wall position in L-shaped Fe4N negatively spin polarized ferromagnetic nanowire (2015)
  • Author(s): T. Gushi, K. Ito, S. Honda, Y. Yasutomi, S. Higashikozono, K. Toko, H. Oosato, Y. Sugimoto, K. Asakawa, N. Ota, and T. Suemasu
  • Organizer: Management Committee of INTERMAG 2015
  • Place of Presentation: China National Convention Center
  • Year and Date: 2015-05-11
  • Int'l Joint Research
• [Presentation] Conduction and Spin Transport via Edge States in Randomly Hydrogenated Graphene Nano-Ribbon (2014)
  • Author(s): K. Inuzuka, S. Honda, and N. Sano
  • Organizer: Computational Science Workshop 2014
  • Place of Presentation: Epochal Tsukuba (Tsukuba, Ibaraki)
  • Year and Date: 2014-08-20 – 2014-08-22
• [Presentation] Magnetization reversal of permalloy film by pure spin current injection: relation between reversal time and injected surface (2014)
  • Author(s): S. Honda and T. Kimura
  • Organizer: Computational Science Workshop 2014
  • Place of Presentation: Epochal Tsukuba (Tsukuba, Ibaraki)
  • Year and Date: 2014-08-20 – 2014-08-22
• [Presentation] Magnetization Reversal Process with Pure Spin Current injections (2014)
  • Author(s): S. Honda and T. Kimura
  • Organizer: 2014 Tsukuba Nanotechnology Symposium
  • Place of Presentation: Univ. Tsukuba (Tsukuba, Ibaraki)
  • Year and Date: 2014-07-25 – 2014-07-26
• [Presentation] Computing surface Green's functions (2014)
  • Author(s): Takafumi Miyata, Ryohei Naito, Syuta Honda
  • Organizer: International Workshop on Eigenvalue Problems: Algorithms; Softwareand Applications, in Petascale Computing
  • Place of Presentation: EPOCHAL TSUKUBA, Tsukuba, Japan
• [Patent(Industrial Property Rights)] 磁気素子、磁気素子を製造する方法、および磁気メモリ装置 (2016)
  • Inventor(s): 本多周太，田中雅章
  • Industrial Property Rights Holder: 本多周太，田中雅章
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2016-049981
  • Filing Date: 2016-03-14
• [Patent(Industrial Property Rights)] 磁化反転装置 (2013)
  • Inventor(s): 木村崇，本多周太，伊藤博介
  • Industrial Property Rights Holder: 木村崇，本多周太，伊藤博介
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2013-082098
  • Filing Date: 2013-04-10