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arXiv · 1009.0318

Theory of magnon-driven spin Seebeck effect

Jiang Xiao·Gerrit E. W. Bauer·Ken-ichi Uchida·Eiji Saitoh·Sadamichi Maekawa
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Abstract

The spin Seebeck effect is a spin-motive force generated by a temperature gradient in a ferromagnet that can be detected via normal metal contacts through the inverse spin Hall effect [K. Uchida {\it et al.}, Nature {\bf 455}, 778-781 (2008)]. We explain this effect by spin pumping at the contact that is proportional to the spin-mixing conductance of the interface, the inverse of a temperature-dependent magnetic coherence volume, and the difference between the magnon temperature in the ferromagnet and the electron temperature in the normal metal [D. J. Sanders and D. Walton, Phys. Rev. B {\bf 15}, 1489 (1977)].

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Jiang Xiao, Gerrit E. W. Bauer, Ken-ichi Uchida, Eiji Saitoh, Sadamichi Maekawa. 2010-09-02. Theory of magnon-driven spin Seebeck effect. https://doi.org/10.1103/physrevb.81.214418

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