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arXiv · 0912.1676

Microscopic Theory of Current-Spin Interaction in Ferromagnets

H. Kohno·S. Kawabata·T. Noguchi·S. Ueta·J. Shibata·G. Tatara
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Abstract

Interplay between magnetization dynamics and electric current in a conducting ferromagnet is theoretically studied based on a microscopic model calculation. First, the effects of the current on magnetization dynamics (spin torques) are studied with special attention to the "dissipative" torques arising from spin-relaxation processes of conduction electrons. Next, an analysis is given of the "spin motive force", namely, a spin-dependent 'voltage' generation due to magnetization dynamics, which is the reaction to spin torques. Finally, an attempt is presented of a unified description of these effects.

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H. Kohno, S. Kawabata, T. Noguchi, S. Ueta, J. Shibata, G. Tatara. 2009-12-09. Microscopic Theory of Current-Spin Interaction in Ferromagnets. https://doi.org/10.1142/9789814282130_0025

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