Microscopic theory of inverse spin Hall effect

2010 Fiscal Year Final Research Report

• Project Area: Creation and control of spin current
• Project/Area Number: 19048027
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: TATARA Gen 首都大学東京, 大学院理工学研究科, 准教授 (10271529)
• Project Period (FY): 2007 – 2010
• Keywords: スピントロニクス / スピントルク / 電流誘起磁化反転 / 磁壁

Research Abstract

Spin pumping effect and inverse spin Hall effect are studied theoretically. It is found that the pumping of spin current and its conversion into electriccurrent are understood clearly in terms of an effective electromagnetic field for electron spin. The effective field was shown to contain new monopole (spin damping monopole), which plays an essential role in spin-charge conversion.

Research Products

• [Journal Article] Damping Monopole (2012)
  • Author(s): Akihito Takeuchi, Gen Tatara
  • Journal Title: J. Phys. Soc. Jpn. Volume: 81 Pages: 033705-1-033705-4
• [Journal Article] Theory of inverse Faraday effect in disordered metal in THz regime (2011)
  • Author(s): Katsuhisa Taguchi, Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 84 Pages: 174433-1-174433-5
• [Journal Article] Microscopic theory of diffusive spin current with spin-orbit interaction (2011)
  • Author(s): Kazuhiro Hosono, Akinobu Yamaguchi, Yukio Nozaki, and Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 83 Pages: 144428-1-144428-10
• [Journal Article] Existence of vertical spin stiffness in Landau-Lifshitz-Gilbert equation in ferromagnetic semiconductors (2011)
  • Author(s): Ka Shen, Gen Tatara and Ming-Wei Wu
  • Journal Title: Phys. Rev. B Volume: 83 Pages: 085203-1-085203-7
• [Journal Article] Theory of spin transport induced by a temperature gradient (2010)
  • Author(s): Yuu Takezoe, Kazuhiro Hosono, Akihito Takeuchi, and Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 82 Pages: 094451-1-094451-9
• [Journal Article] Effect of spin-conserving scattering on Gilbert damping in ferromagnetic semiconductors (2010)
  • Author(s): Ka Shen, Gen Tatara and Ming-Wei Wu
  • Journal Title: Phys. Rev. B Volume: 81 Pages: 193201-1-193201-4
• [Journal Article] Theory of spin relaxation torque in metallic ferromagnets (2010)
  • Author(s): Noriyuki Nakabayashi, Akihito Takeuchi, Kazuhiro Hosono, Katsuhisa Taguchi, Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 82 Pages: 014403-1-014403-10
• [Journal Article] Diffusive versus local spin currents in dynamic spin pumping systems (2010)
  • Author(s): Akihito Takeuchi, Kazuhiro Hosono, Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 81(Editors’ Suggestion) Pages: 144405-1-144405-12
• [Journal Article] Current-driven domain wall motion across a wide temperature range in a (Ga,Mn)(As,P) device (2010)
  • Author(s): Wang, K. Y., Edmonds, K. W., Irvine, A. C., Tatara, G., Ranieri, E. D., Wunderlich, J., Olejnik, K., Rushforth, A. W., Campion, R. P., Williams, D. A., Foxon, C. T., and Gallagher, B. L.
  • Journal Title: Appl. Phys. Lett. Volume: 97 Pages: 262102-1-262102-3
• [Journal Article] Geometry-dependent scaling of critical current densities for current-induced domain wall motion and transformations (2009)
  • Author(s): Lutz Heyne, Gen Tatara, L. Joly, F. Nolting, S. Seo and M. Klaui
  • Journal Title: Phys. Rev. B Volume: 80 Pages: 184405-1/184405-4
• [Journal Article] Spin-transfer torque in disordered weak ferromagnets (2009)
  • Author(s): Yoshisuke Ban, and Gen Tatara
  • Journal Title: Phys. Rev. B Volume: 80 Pages: 184406-1/184406-5
• [Journal Article] Spin-wave contributions to current-induced domain wall dynamics (2009)
  • Author(s): Yann Le Maho, Joo-Von Kim, and Gen Tatara
  • Journal Title: Phys. Rev. Volume: B79 Pages: 174404-1-174404-17
• [Journal Article] Anomalous Hall conductivity due to vector spin chirality in the weak coupling regime (2009)
  • Author(s): Katsuhisa Taguchi, and Gen Tatara
  • Journal Title: Phys. Rev. Volume: B 79 Pages: 054423-1-054423-5
• [Journal Article] Microscopic Approach to Current-driven Domain Wall Dynamics (2008)
  • Author(s): Gen Tatara, Hiroshi Kohno and Junya Shibata
  • Journal Title: Phys. Rep. Volume: 468 Pages: 213-301
• [Journal Article] Calculation of current-induced torque from spin continuity equation (2008)
  • Author(s): Gen Tatara, and Peter Entel
  • Journal Title: Phys. Rev. Volume: B 78 Pages: 064429-1-064429-6
• [Journal Article] Current induced domain wall motion in Rashba spin orbit system (2008)
  • Author(s): Katsunori Obata, and Gen Tatara
  • Journal Title: Phys. Rev. Volume: B 77 Pages: 214429-1-214429-12
• [Presentation] シンポジウム：スピン流電流変換メカニズムに対する理論的知見 (2012)
  • Author(s): 多々良源
  • Organizer: 日本物理学会 2012年春季大会
  • Place of Presentation: 大阪(Invited)
  • Year and Date: 2012-03-25
• [Presentation] Maxwell’s equation and monopole in spintronics (2011)
  • Author(s): G. Tatara
  • Organizer: 7th International Conference on Advanced Materials and Devices (ICAMD 2011)
  • Place of Presentation: Ramada Plaza Jeju Hotel, Jeju, Korea(Invited)
  • Year and Date: 20111207-09
• [Presentation] Magnetic Monopole Generated by Spin Damping with Spin-Orbit Coupling (invited lecture) (2011)
  • Author(s): A. Takeuchi and G. Tatara
  • Organizer: 26th International Conference on Low Temperature Physics (LT26)
  • Place of Presentation: Beijing, China(Invited)
  • Year and Date: 20110810-17
• [Presentation] Introduction to microscopic theory of spin transport (invited lecture) (2011)
  • Author(s): Gen Tatara
  • Organizer: 6th International Sc6th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH6)
  • Place of Presentation: Matsue, Japan(Invited)
  • Year and Date: 20110801-05
• [Presentation] Monopole in spin pumping + inverse spin Hall system (2011)
  • Author(s): Gen Tatara
  • Organizer: 5th International Workshop on Spin Currents
  • Place of Presentation: Sendai International Center, Sendai, JAPAN. (Invited)
  • Year and Date: 20110725-28
• [Presentation] Spin damping monopoles in spin pumping + inverse spin Hall systems (2011)
  • Author(s): Gen Tatara
  • Organizer: Collaborative Conference on 3D & Materials Research
  • Place of Presentation: Ramada Plaza Jeju Hotel Jeju, South Korea (Invited)
  • Year and Date: 20110627-0701
• [Presentation] Spin transports induced by dynamic spin textures (2010)
  • Author(s): Gen Tatara
  • Organizer: The International Conference on Frustrated Spin Systems, Cold Atoms and Nanomaterials
  • Place of Presentation: Hanoi, Vietnam(Invited)
  • Year and Date: 20100714-16
• [Presentation] Novel magneto-electric effects : Current-induced domain wall motion and inverse spin Hall effect (2010)
  • Author(s): Gen Tatara
  • Organizer: JST-EPSRC Workshop
  • Place of Presentation: Cambridge(Invited)
  • Year and Date: 20100215-19
• [Presentation] Spin pumping and inverse spin Hall effect - Microscopic study (2010)
  • Author(s): Gen Tatara
  • Organizer: International workshop on Spin Currents and Spin Caloritronics
  • Place of Presentation: Sendai(Invited)
  • Year and Date: 20100208-10
• [Presentation] 領域 3,領域 4 合同シンポジウム：スピン流に関わる新現象-スピン流 は電磁気学をどこまで変えるか-スピン伝導現象：微視的理論の現状 (2009)
  • Author(s): 多々良源
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: (Invited)
  • Year and Date: 2009-09-26
• [Presentation] Novel Current Pumping Mechanism by Spin Dynamics (2008)
  • Author(s): G. Tatara
  • Organizer: The 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology (ISQM-Tokyo’08)
  • Place of Presentation: Advanced Research Laboratory, Hitachi, Ltd., Hatoyama(Invited)
  • Year and Date: 20080825-28
• [Book] ミニマム電磁気学 (2011)
  • Author(s): 多々良 源
  • Publisher: 培風館
• [Book] 新物理学シリーズ40 スピントロニクス理論の基礎 (2009)
  • Author(s): 多々良 源
  • Publisher: 培風館
• [Remarks]
  • URL: http://sqcm.phys.se.tmu.ac.jp/
• [Patent(Industrial Property Rights)] 磁気抵抗効果素子 (2012)
  • Industrial Property Rights Holder: 市村雅彦, 多々良源, 高橋宏昌
  • Industrial Property Number: 大4932275号
  • Acquisition Date: 2012-02-24
• [Patent(Industrial Property Rights)] Core-Rotating Element of Ferromagnetic Dot and Information Memory Element Using the Core of Ferromagnetic Dot (2011)
  • Industrial Property Rights Holder: Ono, S. Kasai, K. Kobayashi, Y. Nakatani, H. Kohno and G. Tatara
  • Industrial Property Number: US 7,952,915 B2
  • Acquisition Date: 2011-05-31
  • Overseas