Transverse spin dynamics in a spin-polarized Fermi liquid
Abstract
The linear equations for transverse spin dynamics in weakly polarised degenerate Fermi liquid with arbitrary relationship between temperature and polarization are derived from Landau-Silin phenomenological kinetic equation with general form of two-particle collision integral. The temperature and polarization dependence of the spin current relaxation time is established. It is found in particular that at finite polarization transverse spin wave damping has a finite value at T=0. The analogy between temperature dependences of spin waves attenuation and ultrasound absorption in degenerate Fermi liquid at arbitrary temperature is presented. We also discuss spin-polarized Fermi liquid in the general context of the Fermi-liquid theory and compare it with "Fermi liquid" with spontaneous magnetization.
Cite
@article{arxiv.cond-mat/0310620,
title = {Transverse spin dynamics in a spin-polarized Fermi liquid},
author = {V. P. Mineev},
journal= {arXiv preprint arXiv:cond-mat/0310620},
year = {2009}
}
Comments
10 pages