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Report No.

Spin-motive force due to a gyrating magnetic vortex

Tanabe, Kenji*; Chiba, Daichi*; Oe, Junichiro*; Kasai, Shinya*; Kono, Hideo*; Barnes, S. E.*; Maekawa, Sadamichi; Kobayashi, Kensuke*; Ono, Teruo*

A change of magnetic flux through a circuit induces an electromotive force. By analogy, a recently predicated 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 report 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.



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Category:Multidisciplinary Sciences



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