• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2010 Fiscal Year Final Research Report

Computer simulation of magnetic vortex core switching by spin current

Planned Research

  • PDF
Project AreaCreation and control of spin current
Project/Area Number 19048021
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Electro-Communications

Principal Investigator

NAKATANI Yoshinobu  The University of Electro-Communications, 大学院・情報理工学研究科, 教授 (20207814)

Project Period (FY) 2007 – 2010
Keywordsスピン流 / 磁化反転
Research Abstract

Recently, there are many works relating to the vortex core dynamics by spin current. In this research the mechanism of the vortex core rotation and switching by spin current are investigated by using computer simulation. We also investigate the conditions to use this mechanism for magnetic devices. Because these simulation requires huge amount of the computation time, we propose the method to accelerate the calculation speed by using the graphic processing unit.

  • Research Products

    (14 results)

All 2011 2010 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (9 results)

  • [Journal Article] Fast Micromagnetic Simulation of Vortex2011

    • Author(s)
      T.Sato, Y.Nakatani.
    • Journal Title

      Journal of the Magnetics Society of Japan 35

      Pages: 163

    • Peer Reviewed
  • [Journal Article] Current-induced switching of magnetic vortex core in ferromagnetic elliptical disks2010

    • Author(s)
      K.Yamada, S.Kasai, Y.Nakatani, K.Kobayashi, T.Ono
    • Journal Title

      Applied Physics Letters 96

      Pages: 192508

    • Peer Reviewed
  • [Journal Article] Probing the spin polarization of current by soft X-ray imaging of current-induced magnetic vortex dynamics2008

    • Author(s)
      S.Kasai.P.Fischer, Mi-Y.Im, K.Yamada, Y.Nakatani, K.Kobayashi, T.Ono
    • Journal Title

      Physical Review Letters 101

      Pages: 237203

    • Peer Reviewed
  • [Journal Article] Switching magnetic vortex core by a single nanosecond current pulse2008

    • Author(s)
      K.Ymada, S.Kasai, Y.Nakatani, K.Kobayashi, T.Ono
    • Journal Title

      Applied Physics Letters 93

      Pages: 152502

    • Peer Reviewed
  • [Journal Article] Electrical rectification effect in single domain magnetic microstrips : A micromagnetics-based analysis2008

    • Author(s)
      A.Thiaville, Y.Nakatani
    • Journal Title

      Journal of Applied Physics 104

      Pages: 93701

    • Peer Reviewed
  • [Presentation] The Effect of Oersted Field on Magnetic Vortex Core Gyration2010

    • Author(s)
      T.Sato, Y.Nakatani, T.Ono
    • Organizer
      International Connference of AUMS
    • Place of Presentation
      Jeju Korea
    • Year and Date
      2010-12-06
  • [Presentation] Velocity of the vortex core switching in elliptic dots2010

    • Author(s)
      T.Sato, Y.Nakatani, K.Yamada, T.Ono
    • Organizer
      11th Joint MMM-Intermag Conference
    • Place of Presentation
      Washington USA
    • Year and Date
      2010-01-22
  • [Presentation] Effect of the calculation precition in micromagnetic simulation2010

    • Author(s)
      T.Sato, Y.Nakatani
    • Organizer
      11th Joint MMM-Intermag Conference
    • Place of Presentation
      Washington USA
    • Year and Date
      2010-01-20
  • [Presentation] Effect of the thermal fluctuation on the current induced vortex core switching time2009

    • Author(s)
      T.Sato, Y.Nakatani
    • Organizer
      International Colloquim on Magnetic Films and Surfaces
    • Place of Presentation
      Berlin Germany
    • Year and Date
      2009-07-20
  • [Presentation] Pulse current switching of a vortex core in a nanodot: a micromagnetic study2009

    • Author(s)
      Y.Nakatani, A.Thiaville, K, Yamada, S.Kasai, K.Kobayashi, T.Ono
    • Organizer
      International Colloquim on Magnetic Films and Surfaces
    • Place of Presentation
      Berlin Germany
    • Year and Date
      2009-07-20
  • [Presentation] Fast micromagnetic simulation by cell broadband engine2009

    • Author(s)
      T.Sato, Y.Nakatani
    • Organizer
      INTERMAG CONFERENC2009
    • Place of Presentation
      Sacrament USA
    • Year and Date
      2009-05-05
  • [Presentation] Fast micromagnetic simulation by a graphic processor unit2009

    • Author(s)
      M.Tate, T.Sato, Y.Nakatani
    • Organizer
      INTERMAG CONFERENC2009
    • Place of Presentation
      Sacrament USA
    • Year and Date
      2009-05-05
  • [Presentation] Effect of the ellipticity on the switching current and field of the vortex core in an elliptic nanodot2008

    • Author(s)
      Y.Nakatani, T.Ono
    • Organizer
      Magnetic single nano-object workshop
    • Place of Presentation
      Nancy France
    • Year and Date
      2008-11-27
  • [Presentation] Reduction of the vortex core switching current with an elliptic nanodot2008

    • Author(s)
      Y.Nakatani, A.Thiaville, K.Yamada, S.Kasai, K.Kobayashi, T.Ono
    • Organizer
      53th Annual Conference on Magnetism and Magnetic Material
    • Place of Presentation
      Austin USA
    • Year and Date
      2008-11-12

URL: 

Published: 2012-02-13   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi