Spin Current and Optical Properties

2010 Fiscal Year Final Research Report

• Project Area: Creation and control of spin current
• Project/Area Number: 19048008
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tohoku University
• Principal Investigator: OHNO Yuzo 東北大学, 電気通信研究所, 准教授 (00282012)
• Co-Investigator(Kenkyū-buntansha): MUNEKATA Hiroo 東京工業大学, 理工学研究科, 教授 (60270922) ; ANDO Yasuo 東北大学, 工学研究科, 教授 (60250726) ; NAGAOSA Naoto 東京大学, 工学系研究科, 教授 (60164406)
• Project Period (FY): 2007 – 2010
• Keywords: スピン流 / スピン・軌道相互作用 / 強磁性半導体 / 強磁性共鳴 / スピンホール効果

Research Abstract

On the spin current and optical properties, we investigated optical control and detection of electron and nuclear spin dynamics in semiconductor quantum structures, novel properties of ferromagnetic semidonductors with light irradiation, optical properties of the ferromagnetic metal multilayers, and theories of spin and light coupled phenomena. We obtained number of results on the spin current and optical properties, with collaboration between experimental and theoretical research groups.

Research Products

• [Journal Article] Long-Lived Ultrafast Spin Precession in Manganese Alloys Films with a Large Perpendicular Magnetic Anisotropy (2011)
  • Author(s): S. Mizukami, F. Wu, A. Sakuma, J. Walowski, D. Watanabe, T. Kutoba, X. Zhang, H. Naganuma, M. Oogane, Y. Ando, T. Miyazaki
  • Journal Title: Phys. Rev. Lett. Volume: 106 Pages: 117201
  • Peer Reviewed
• [Journal Article] Theory of Electromagnons in the Multiferroic Mn Perovskites : The Vital Role of Higher Harmonic Components of the Spiral Spin Order (2010)
  • Author(s): M. Mochizuki, N. Furukawa, N. Nagaosa
  • Journal Title: Phys. Rev. Lett. Volume: 104 Pages: 177206
  • Peer Reviewed
• [Journal Article] Photoinduced Preccession of Magnetization in Ferromagnetic (Ga,Mn)As (2008)
  • Author(s): Y. Hashimoto, S. Kobayashi, H. Munekata
  • Journal Title: Phys. Rev. Lett. Volume: 100 Pages: 067202
  • Peer Reviewed
• [Presentation] Unconventional Superconductivity on a Topologica Insulator (2010)
  • Author(s): Naoto Nagaosa
  • Organizer: 55thMMM Conference
  • Place of Presentation: Atlanta, USA (Invited)
  • Year and Date: 20101114-18
• [Presentation] Phase Control of Coherent Nuclear Spin Dynamics Coupled with Optically-Injected Electron Soing in GaAs Quantum Wells (INVITED) (2008)
  • Author(s): Y. Ohno, Y. Kondo, M. Ono, S. Matsuzaka, K. Morita, H. Sanada, H. Ohno
  • Organizer: International Workshop on Spin Currents
  • Place of Presentation: IMR, Tohoku Univ.
  • Year and Date: 2008-02-19
• [Remarks]
  • URL: http://www.scl.kyoto-u.ac.jp/~ono/tokutei/public_html/