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arXiv · 1110.3940

Spin Caloritronics in Noncondensed Bose Gases

C. H. Wong·H. J. van Driel·R. Kittinaradorn·H. T. C. Stoof·R. A. Duine
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Abstract

We consider coupled spin and heat transport in a two-component, atomic Bose gas in the noncon- densed state. We find that the transport coefficients show a temperature dependence reflecting the bosonic enhancement of scattering, and discuss experimental signatures of the spin-heat coupling in spin accumulation and total dissipation. Inside the critical region of Bose-Einstein condensation, we find anomalous behavior of the transport coefficients, and in particular, an enhancement for the spin caloritronics figure of merit that determines the thermodynamic efficiency of spin-heat conversion.

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C. H. Wong, H. J. van Driel, R. Kittinaradorn, H. T. C. Stoof, R. A. Duine. 2011-10-18. Spin Caloritronics in Noncondensed Bose Gases. https://doi.org/10.1103/physrevlett.108.075301

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