TY - JOUR
T1 - Low-temperature spin diffusion in a spin-polarized fermi gas
AU - Golosov, D. I.
AU - Ruckenstein, A. E.
PY - 1995/2/27
Y1 - 1995/2/27
N2 - We present a finite temperature calculation of the transverse spin-diffusion coefficient D in a dilute degenerate Fermi gas, in the presence of a small external magnetic field H. While the longitudinal diffusion coefficient displays the conventional Fermi-liquid dependence, DT-2, the behavior of D shows three separate regimes: (a) D∼H-2 for TH, (b) D∼T-2, DD1 for TH and large spin-rotation parameter ξ1, and (c) D=DT-2 for TH and ξ1. Our results are qualitatively consistent with the experimental data in weakly spin-polarized He3 and He3- He4 mixtures.
AB - We present a finite temperature calculation of the transverse spin-diffusion coefficient D in a dilute degenerate Fermi gas, in the presence of a small external magnetic field H. While the longitudinal diffusion coefficient displays the conventional Fermi-liquid dependence, DT-2, the behavior of D shows three separate regimes: (a) D∼H-2 for TH, (b) D∼T-2, DD1 for TH and large spin-rotation parameter ξ1, and (c) D=DT-2 for TH and ξ1. Our results are qualitatively consistent with the experimental data in weakly spin-polarized He3 and He3- He4 mixtures.
UR - http://www.scopus.com/inward/record.url?scp=2342589028&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.74.1613
DO - 10.1103/PhysRevLett.74.1613
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C2 - 10059073
AN - SCOPUS:2342589028
SN - 0031-9007
VL - 74
SP - 1613
EP - 1616
JO - Physical Review Letters
JF - Physical Review Letters
IS - 9
ER -