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Spin-motive force due to a gyrating magnetic vortex

Author

Listed:
  • K. Tanabe

    (Institute for Chemical Research, Kyoto University)

  • D. Chiba

    (Institute for Chemical Research, Kyoto University
    PRESTO, Japan Science and Technology Agency)

  • J. Ohe

    (Toho University
    The Advanced Science Research Center, The Japan Atomic Energy Agency
    CREST, Japan Science and Technology Agency)

  • S. Kasai

    (Institute for Chemical Research, Kyoto University
    National Institute for Material Science)

  • H. Kohno

    (Graduate School of Engineering Science, Osaka University)

  • S. E. Barnes

    (University of Miami, Coral Gables)

  • S. Maekawa

    (The Advanced Science Research Center, The Japan Atomic Energy Agency
    CREST, Japan Science and Technology Agency)

  • K. Kobayashi

    (Institute for Chemical Research, Kyoto University)

  • T. Ono

    (Institute for Chemical Research, Kyoto University)

Abstract

A change of magnetic flux through a circuit induces an electromotive force. By analogy, a recently predicted force that results from the motion of non-uniform spin structures has been termed the spin-motive force. Although recent experiments seem to confirm its presence, a direct signature of the spin-motive force has remained elusive. Here we report the observation of a real-time spin-motive force produced by the gyration of a magnetic vortex core. We find a good agreement between the experimental results, theory and micromagnetic simulations, which taken as a whole provide strong evidence in favour of a spin-motive force.

Suggested Citation

  • K. Tanabe & D. Chiba & J. Ohe & S. Kasai & H. Kohno & S. E. Barnes & S. Maekawa & K. Kobayashi & T. Ono, 2012. "Spin-motive force due to a gyrating magnetic vortex," Nature Communications, Nature, vol. 3(1), pages 1-5, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1824
    DOI: 10.1038/ncomms1824
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