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 interspin 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 interspin scattering.
Original language | English |
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Article number | 063613 |
Pages (from-to) | 063613-1-063613-4 |
Number of pages | 4 |
Journal | Physical review. A, Atomic, molecular and optical physics |
Volume | 85 |
DOIs | |
Publication status | Published - 2012 |