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Spin-Seebeck effect in a strongly interacting Fermi gas | | C. H. Wong
; H.T.C. Stoof
; R.A. Duine
; | | Date: |
16 Mar 2012 | | 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. | | Source: | arXiv, 1203.3745 | | Services: | Forum | Review | PDF | Favorites | |
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