Thermal spin-accumulation

Jean-Eric Wegrowe; Henri-Jean Drouhin; Daniel Lacour

doi:10.1117/12.936328

9 October 2012 Thermal spin-accumulation

Jean-Eric Wegrowe, Henri-Jean Drouhin, Daniel Lacour

Proceedings Volume 8461, Spintronics V; 84610D (2012) https://doi.org/10.1117/12.936328
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

In order to understand some new spintronics experiments of spin-dependent voltage for which the electric conduction does not play a role, a model of two spin-conduction channel is proposed in which the ferromagnets (either electric conductors or insulators) are defined by an ensemble of non equilibrium heat carriers composed of a populations of heat carriers of spin up, and heat carriers of spin down. It is shown that a temperature gradient generates locally a spin-accumulation. The diffu sion equation of this thermal spin-accumulation is straightforwardly derived from the corresponding transport equations and conservation equations. The principle of the detection is described in terms of Spin-Nernst effect.

Citation Download Citation

Jean-Eric Wegrowe, Henri-Jean Drouhin, and Daniel Lacour "Thermal spin-accumulation", Proc. SPIE 8461, Spintronics V, 84610D (9 October 2012); https://doi.org/10.1117/12.936328

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