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田辺 賢士*; 千葉 大地*; 大江 純一郎*; 葛西 伸哉*; 河野 日出夫*; Barnes, S. E.*; 前川 禎通; 小林 研介*; 小野 輝男*
Nature Communications (Internet), 3, p.845_1 - 845_5, 2012/05
被引用回数:42 パーセンタイル:82.81(Multidisciplinary Sciences)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.