Theoretical study of spin-dependent transport in magnetic nanostructures using ferromagnetic insulators

2012 Fiscal Year Final Research Report

• Project/Area Number: 22540346
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Tohoku University
• Principal Investigator: TAKAHASHI Saburo 東北大学, 金属材料研究所, 助教 (60171485)
• Project Period (FY): 2010 – 2012
• Keywords: スピントロニクス / 強磁性絶縁体 / スピン流 / スピン蓄積 / スピンホール効果 / スピンゼーベック効果 / スピン依存伝導

Research Abstract

We proposed new feature spintronics devices utilizing magnon (spin wave) and magnon current as a new spin source and elucidated the physics of spin transport in magnetic nanostructures using magnetic insulators. By using magnetic insulators, such as yttrium-iron-garnet (Y5Fe2O12:YIG), we explored novel spin transport phenomena, such as the spin Seebeck effect, involving magnon accumulation and magnon current and paved the way for development of new energy-saving spintronic devices.

Research Products

• [Journal Article] Spin torque transistor revisited (2013)
  • Author(s): T. Chiba, G. E. W. Bauer, and S. Takahashi
  • Journal Title: Appl. Phys. Lett Volume: 102 Pages: 192412 (1-5)
  • DOI: DOI:10.1063/1.4806982
  • Peer Reviewed
• [Journal Article] Theory of spin Hall magnetoresistance (2013)
  • Author(s): Y.-T. Chen, S. Takahashi, H. Nakayama, M. Althammer, S. T. B. Goennenwein, E. Saitoh, and G. E. W. Bauer
  • Journal Title: Phys. Rev. B Volume: 87 Pages: 144411 (1-9)
  • DOI: DOI:10.1103/PhysRevB.87.144411
  • Peer Reviewed
• [Journal Article] Spin Hall effect in superconductors (2012)
  • Author(s): S. Takahashi and S. Maekawa
  • Journal Title: Jpn. J. Appl. Phys Volume: 51 Pages: 010110 (1-7)
  • DOI: DOI:10.1143/JJAP.51.010110
  • Peer Reviewed
• [Journal Article] Electrically tunable spin injector free from the impedance mismatch problem (2011)
  • Author(s): K. Ando, S. Takahashi, J. Ieda, H. Kurebayashi, T. Trypiniotis, C. H. W. Barnes, S. Maekawa, and E. Saitoh
  • Journal Title: Nature Materials Volume: 10 Pages: 655-659
  • DOI: DOI:10.1038/nmat3052
  • Peer Reviewed
• [Journal Article] Giant enhancement of spin accumulation and long-distance spin manipulation in metallic lateral spin valves (2011)
  • Author(s): Y. Fukuma, L. Wang, H. Idzuchi, S. Takahashi, S. Maekawa, and Y. Otani
  • Journal Title: Nature Materials Volume: 10 Pages: 527-531
  • DOI: DOI:10.1038/nmat3046
  • Peer Reviewed
• [Journal Article] Composite excitation of Josephson phase and spin wave in Josephson junction with ferromagnetic insulator (2011)
  • Author(s): S. Hikino, M. Mori, S. Takahashi, and S. Maekawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: 074707 (1-8)
  • DOI: DOI:10.1143/JPSJ.80.074707
  • Peer Reviewed
• [Journal Article] Spin transfer torque in MTJs with synthetic ferrimagnetic layers by the Keldysh approach (2011)
  • Author(s): M. Ichimura, T. Hamada, H. Imamura, S. Takahashi, and S. Maekawa
  • Journal Title: J. Appl. Phys Volume: 109 Pages: 07C906 (1-3)
  • DOI: DOI:10.1063/1.3549437
  • Peer Reviewed
• [Journal Article] Inverse spin-Hall effect induced by spin pumping in metallic systems (2011)
  • Author(s): K. Ando, S. Takahashi, J. Ieda, Y. Kajiwara, H. Nakayama, T. Yoshino, K. Harii, Y. Fujikawa, M. Matsuo, S. Maekawa, and E. Saitoh
  • Journal Title: J. Appl. Phys Volume: 109 Pages: 1591(1-11)
  • DOI: DOI:10.1063/1.3587173
  • Peer Reviewed
• [Journal Article] Detection of spin-wave spin current in a magnetic insulator (2011)
  • Author(s): Y. Kajiwara, S. Takahashi, S. Maekawa, and E. Saitoh
  • Journal Title: IEEE Trans. Magn Volume: 47 Pages: 1591(1-4)
  • DOI: DOI:10.1109/TMAG.2011.2118747
  • Peer Reviewed
• [Journal Article] Linear-response theory of spin Seebeck effect in ferromagnetic insulator (2011)
  • Author(s): H. Adachi, J. Ohe, S. Takahashi, and S. Maekawa
  • Journal Title: Phys. Rev. B Volume: 83 Pages: 094410 (1-6)
  • DOI: DOI:10.1103/PhysRevB.83.094410
  • Peer Reviewed
• [Journal Article] Numerical study on the spin Seebeck effect (2011)
  • Author(s): J. Ohe, H. Adachi, S. Takahashi, and S. Maekawa
  • Journal Title: Phys. Rev. B Volume: 83 Pages: 115118 (1-5)
  • DOI: DOI:10.1103/PhysRevB.83.115118
  • Peer Reviewed
• [Journal Article] Spin Seebeck insulator (2010)
  • Author(s): K. Uchida, J. Xiao, H. Adachi, J. Ohe, S. Takahashi, J. Ieda, T. Ota, Y. Kajiwara, H. Umezawa, H. Kawai, G. E. W. Bauer, S. Maekawa, and E. Saitoh
  • Journal Title: Nature Materials Volume: 9 Pages: 894-897
  • DOI: DOI:10.1038/NMAT2856
  • Peer Reviewed
• [Journal Article] Gigantic enhancement of spin Seebeck effect by phonon drag (2010)
  • Author(s): H. Adachi, K. Uchida, E. Saitoh, J. Ohe, S. Takahashi, and S. Maekawa
  • Journal Title: Appl. Phys. Lett Volume: 97 Pages: 252506 (1-3)
  • DOI: DOI:10.1063/1.3529944
  • Peer Reviewed
• [Journal Article] Effect of interlayer coupling of synthetic ferrimagnetic free layer on current induced magnetization switching in MTJs (2010)
  • Author(s): R. Sugano, M. Ichimura, S. Takahashi, and S. Maekawa
  • Journal Title: IEEE Trans. Magn Volume: 46 Pages: 2136-2139
  • DOI: DOI:10.1109/TMAG.2010.2042149
  • Peer Reviewed
• [Presentation] スピントルクトランジスタ (2013)
  • Author(s): 千葉貴裕,G.E.W.Bauer,高橋三郎
  • Organizer: 応用物理学会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2013-03-28
• [Presentation] スピン Hall 効果を介した磁気抵抗効果 (2013)
  • Author(s): 中山裕康,M. Althammer,Y.-T. Chen,内田健一,梶原瑛祐,菊池大介,大谷隆史,S. Gepraegs,M. Opel,高橋三郎,R. Gross,G. E. W. Bauer, S. Goennenwein,齊藤英治
  • Organizer: 応用物理学会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2013-03-28
• [Presentation] スピン起電力による非局所スピンバルブ構造におけるスピン流変調 (2013)
  • Author(s): 市村雅彦,家田淳一,高橋三郎,前川禎通
  • Organizer: 応用物理学会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2013-03-28
• [Presentation] 純スピン流の拡散速度に対するスピン吸収の影響 (2013)
  • Author(s): 井土宏、福間康裕、高橋三郎、前川禎通、大谷義近
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-27
• [Presentation] スピンポンピングの歳差位相差依存性 (2013)
  • Author(s): 高橋三郎
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-25
• [Presentation] Mechanical motion of fluid by spin injection (招待講演) (2013)
  • Author(s): S. Takahashi
  • Organizer: 8th International Workshop on Spin Mechanics
  • Place of Presentation: 東海
  • Year and Date: 2013-02-25
• [Presentation] Spin torque transistor revisited (2013)
  • Author(s): T. Chiba, G. E. W. Bauer, and S. Takahashi
  • Organizer: The 3rd CSIS Inter national Symposium on Spintronics-based VLSIs and The 11th RIEC International Workshop on Spintronics
  • Place of Presentation: 仙台
  • Year and Date: 2013-01-31
• [Presentation] Non-equilibrium proximity-induced anisotropic magnetoresistance (2013)
  • Author(s): Y.-T. Chen, S. Takahashi, H. Nakayama, S. Goennenwein, E. Saitoh, and G.E.W. Bauer
  • Organizer: 12th Joint MMM/Intermag Conference
  • Place of Presentation: シカゴ, 米国
  • Year and Date: 2013-01-17
• [Presentation] Emergence of non-equilibrium magnetization through transfer of spin motive force (2013)
  • Author(s): R. Sugano, M. Ichimura, S. Takahashi, and S. Maekawa
  • Organizer: 12th Joint MMM/Intermag Conference
  • Place of Presentation: シカゴ, 米国
  • Year and Date: 2013-01-15
• [Presentation] 強磁性絶縁体/金属接合におけるスピンホール磁 気抵抗効果 (2012)
  • Author(s): 高橋三郎 , Y.-T. Chen,G.E.W. Bauer
  • Organizer: 日本物理学会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-18
• [Presentation] 磁壁移動によるスピン起電力を用いた非磁性体中でのスピン流生成 (2012)
  • Author(s): 菅野量子,市村雅彦,高橋三郎,前川禎通
  • Organizer: 日本物理学会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-18
• [Presentation] スピン起電力を用いた非局所スピンバルブ構造におけるスピン流増幅 (2012)
  • Author(s): 市村雅彦,菅野量子,高橋三郎,前川禎通
  • Organizer: 応用物理学会
  • Place of Presentation: 松山大学
  • Year and Date: 2012-09-13
• [Presentation] Spin injection into magnetic insulator using spin Hall effect(招待講演) (2012)
  • Author(s): S. Takahashi
  • Organizer: Spin Caloritronics 2012
  • Place of Presentation: 仙台
  • Year and Date: 2012-06-05
• [Presentation] 非磁性ナノ粒子におけるスピン緩和の理論 (2012)
  • Author(s): 高橋三郎
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] 磁性ナノ構造におけるスピン蓄積とスピン歳差 (2011)
  • Author(s): 高橋三郎
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] 磁化ダイナミクスを用いた半導体へのスピン注入(理論) (2011)
  • Author(s): 家田淳一,高橋三郎,前川禎通
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] 積層フェリ磁性層をもつMTJにおける面内/面直STOの同期モード (2011)
  • Author(s): 菅野量子,市村雅彦,高橋三郎,前川禎通
  • Organizer: 応用物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2011-08-31
• [Presentation] Spin Seebeck effect in magnetic insulator: A phenomenological approach (招待講演) (2011)
  • Author(s): S. Takahashi
  • Organizer: Spin Caloritronics 2011
  • Place of Presentation: ライデン, オランダ
  • Year and Date: 2011-05-10
• [Presentation] Current-induced steady precessional modes and magnetization switching in MTJs with synthetic ferrimagnetic free layer (2010)
  • Author(s): R. Sugano, M. Ichimura, S. Takahashi, and S. Maekawa
  • Organizer: International Conference of AUMS
  • Place of Presentation: 済州 島, 韓国
  • Year and Date: 2010-12-06
• [Presentation] Bias dependence of spin-transfer torque in MTJs with synthetic ferrimagnetic layers (2010)
  • Author(s): M. Ichimura, T. Hamada, H. Imamura, S. Takahashi, and S. Maekawa
  • Organizer: International Conference of AUMS
  • Place of Presentation: 済州島, 韓国
  • Year and Date: 2010-12-06
• [Presentation] 磁性絶縁体におけるスピンゼー ベック効果の現象論 (2010)
  • Author(s): 高橋三郎 ,大江純一郎,安立裕人,家田淳 一,前川禎通
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-25
• [Presentation] 局所スピン注入による磁性薄膜中のスピン 波励起 (2010)
  • Author(s): 大江純一郎,安立裕人, 高橋三郎 ,前川禎 通
  • Organizer: 日本物理学会
  • Place of Presentation: 大 阪府立大学
  • Year and Date: 2010-09-24
• [Presentation] 集団励起を介する熱スピン流の理論解析II (2010)
  • Author(s): 安立裕人,高橋三郎,前川禎通
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-24
• [Book] Spin Current (2012)
  • Author(s): S. Maekawa and S. Takahashi
  • Total Pages: 194-208
  • Publisher: OxfordUniversity Press
• [Book] Handbook of Spin Transport and Magnetism (2011)
  • Author(s): S. Takahashi and S. Maekawa
  • Total Pages: 619-635
  • Publisher: CRC Press