Thermoelectric spin diffusion in a ferromagnetic metal

We present a semiclassical theory of spin diffusion in a ferromagnetic metal subject to a temperature gradient. Spin-flip scattering can generate pure thermal spin currents by short-circuiting spin channels while suppressing spin accumulations. A thermally induced spin density is locally generated w...

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Bibliographic Details
Published in:Solid state communications 2010-03, Vol.150 (11), p.480-484
Main Authors: Hatami, Moosa, Bauer, Gerrit E.W., Takahashi, Saburo, Maekawa, Sadamichi
Format: Article
Language:English
Subjects:
A. Metallic ferromagnets
D. Spin caloritronics
D. Spin diffusion
D. Thermoelectrics
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Summary:We present a semiclassical theory of spin diffusion in a ferromagnetic metal subject to a temperature gradient. Spin-flip scattering can generate pure thermal spin currents by short-circuiting spin channels while suppressing spin accumulations. A thermally induced spin density is locally generated when the energy dependence of the density of states is spin polarized.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2009.12.013