Theory of magnon-driven spin Seebeck effect
Theory of magnon-driven spin Seebeck effect
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DOI:
10.1103/physrevb.81.214418
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发表时间:
2010-06-14
影响因子:
3.7
通讯作者:
Maekawa, Sadamichi
中科院分区:
文献类型:
--
作者:
Xiao, Jiang;Bauer, Gerrit E. W.;Maekawa, Sadamichi
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 et al., Nature (London) 455, 778 (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 15, 1489 (1977)].