Spin-Seebeck effect in a strongly interacting Fermi gas

C. H. Wong; H. T. C. Stoof; R. A. Duine

doi:10.1103/physreva.85.063613

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arXiv · 1203.3745

Spin-Seebeck effect in a strongly interacting Fermi gas

C. H. Wong·H. T. C. Stoof·R. A. Duine

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Abstract

We study the spin-Seebeck effect in a strongly interacting, two-component Fermi gas and propose an experiment to measure this effect by relatively displacing spin up and spin down atomic clouds in a trap using spin-dependent temperature gradients. We compute the spin-Seebeck coefficient and related spin-heat transport coefficients as functions of temperature and interaction strength. We find that when the inter-spin scattering length becomes larger than the Fermi wavelength, the spin-Seebeck coefficient changes sign as a function of temperature, and hence so does the direction of the spin-separation. We compute this zero-crossing temperature as a function of interaction strength and in particular in the unitary limit for the inter-spin scattering.

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BibTeX RIS

C. H. Wong, H. T. C. Stoof, R. A. Duine. 2012-03-16. Spin-Seebeck effect in a strongly interacting Fermi gas. https://doi.org/10.1103/physreva.85.063613

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