2012/03/16 by C. H. Wong, Clement H. Wong, H. T. C. Stoof +1 · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Electron #Fermi gas #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scattering #Seebeck coefficient #Spin (aerodynamics) #Thermoelectric effect #cond-mat.mes-hall #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.85.063613
published as Phys. Rev. A 85, 063613 (2012)
arxiv created 2012/03/16 · openalex publication_date 2012/06/15 · arxiv updated 2012/08/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.