Nano-scale control of magnetization by spin current

2009 Fiscal Year Self-evaluation Report

• Project Area: Creation and control of spin current
• Project/Area Number: 19048023
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyoto University
• Principal Investigator: ONO Teruo Kyoto University, 化学研究所, 教授 (90296749)
• Project Period (FY): 2007 – 2010
• Keywords: スピントロニクス

Research Abstract

電流を運ぶ伝導電子と磁化を担う磁気モーメントとの直接相互作用(スピントランスファー効果)を利用して磁化状態を制御することを目指す研究が世界的に研究されている。本研究では、微細加工を用いて作り出した磁壁や磁気渦などのモデル系におけるスピン流励起ナノスピンダイナミクスを研究することで、スピン流による磁気構造のナノスケール制御を確立することを目的とする。さらに、逆効果と考えられるナノスピン構造励起によるスピン流創出を目指す。

Research Products

• [Journal Article] Electrical detection of vortex core polarity in ferromagnetic disk (2010)
  • Author(s): Kunihiro Nakano, Daichi Chiba, Koji Sekiguchi, Shinya Kasai, Norikazu Ohshima, Kensuke Kobayashi, Teruo Ono
  • Journal Title: Appl. Phys. Express 3 Pages: 053001
• [Journal Article] Current-Induced Control of Spin-Wave Attenuation (2009)
  • Author(s): Soo-Man Seo, Kyung-Jin Lee, Hyunsoo Yang, Teruo Ono
  • Journal Title: Phys. Rev. Lett. 102 Pages: 147202
• [Journal Article] Probing the Spin Polarization of Current by Soft X-Ray Imaging of Current-Induced Magnetic Vortex Dynamics (2008)
  • Author(s): Shinya Kasai, Peter Fischer, Mi-Young Im, Keisuke Yamada, Yoshinobu Nakatani, Kensuke Kobayashi, Hiroshi Kohno, Teruo Ono
  • Journal Title: Phys. Rev. Lett. 101 Pages: 237203
• [Journal Article] Dynamical Pinning of a Domain Wall in a Magnetic Nanowire Induced by Walker Breakdown (2008)
  • Author(s): Hironobu Tanigawa, Tomohiro Koyama, Maciej Bartkowiak, Shinya Kasai, Kensuke Kobayashi, Teruo Ono, Yoshinobu Nakatani
  • Journal Title: Phys. Rev. Lett. 101 Pages: 207203
• [Journal Article] Switching magnetic vortex core by a single nanosecond current pulse (2008)
  • Author(s): Keisuke Yamada, Shinya Kasai, Yoshinobu Nakatani, Kensuke Kobayashi, Teruo Ono
  • Journal Title: Appl. Phys. Lett. 93 Pages: 152502
• [Journal Article] Three-Terminal Device Based on the Current-Induced Magnetic Vortex Dynamics with the Magnetic Tunnel Junction (2008)
  • Author(s): Shinya Kasai, Kunihiro Nakano, Kouta Kondou, Norikazu Ohshima, Kensuke Kobayashi, Teruo Ono
  • Journal Title: Appl. Phys. Express 1 Pages: 091302
• [Journal Article] Magnetic Domain Wall Oscillator (2008)
  • Author(s): T. Ono, Y. Nakatani
  • Journal Title: Appl. Phys. Express 1 Pages: 061301
• [Journal Article] Domain wall ratchet effect in a magnetic wire with asymmetric notches (2008)
  • Author(s): A. Himeno, K. Kondo, H. Tanigawa, S. Kasai, T. Ono
  • Journal Title: J. Appl. Phys. 103 Pages: 07E703
• [Presentation] Modification of Spin Wave Propagation by Current Injection (2010)
  • Author(s): Teruo Ono
  • Organizer: American Physical Society March Meeting
  • Place of Presentation: Portland, USA
  • Year and Date: 2010-03-17
• [Presentation] Current-induced Domain Wall Motion in Perpendicularly Magnetized Co/Ni Wires (2009)
  • Author(s): Teruo Ono
  • Organizer: 20th International Colloquium on Magnetic Films and Surfaces
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2009-06-23
• [Presentation] Current-induced vortex core motion in magnetic disk (2008)
  • Author(s): Teruo Ono
  • Organizer: Moscow International Symposium on Magnetism
  • Place of Presentation: Moscow, Russia
  • Year and Date: 20080620-20080625
• [Presentation] Current-induced magnetization dynamics in nanomagnet (2008)
  • Author(s): Teruo Ono
  • Organizer: The 5th International Workshop on Surface, Interface, and Thin Film Physics
  • Place of Presentation: Shanghai, China
  • Year and Date: 20080617-20080619
• [Presentation] Switching a vortex core in a ferromagnetic disk by electric current (2007)
  • Author(s): Teruo Ono
  • Organizer: 4th Asian Forum on Magnetics
  • Place of Presentation: Douliou, Taiwan
  • Year and Date: 20070729-20070801
• [Presentation] Excitation of nano-spin-structure by electric current (2007)
  • Author(s): Teruo Ono
  • Organizer: International Conference on Nanospintronics Design and Realization
  • Place of Presentation: Dresden, Germany
  • Year and Date: 20070521-20070525
• [Presentation] Electrical Manipulation of Magnetization in Nanomagnet (2007)
  • Author(s): Teruo Ono
  • Organizer: The 5th International Conference on Advanced Materials and Devices
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2007-12-14
• [Presentation] Current-induced spin dynamics in nanomagnet (2007)
  • Author(s): Teruo Ono
  • Organizer: Joint EUROCORES FONE "SpiCo-SPINCURRENT-Spintra" Workshop, Quantum Transport, Magnetic Nanodevices and Spintronics
  • Place of Presentation: Napoli, Italy
  • Year and Date: 2007-12-11
• [Presentation] Switching a vortex core in a ferromagnetic disk by electric current (2007)
  • Author(s): Teruo Ono
  • Organizer: Material Research Society Fall Meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2007-11-26