Transverse spin dynamics in a spin-polarized Fermi liquid
Abstract
The linear equations for transverse spin dynamics in a weakly polarized degenerate Fermi liquid with arbitrary relationship between temperature T and polarization γH 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 wave 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.
- Publication:
-
Physical Review B
- Pub Date:
- April 2004
- DOI:
- 10.1103/PhysRevB.69.144429
- arXiv:
- arXiv:cond-mat/0310620
- Bibcode:
- 2004PhRvB..69n4429M
- Keywords:
-
- 71.10.Ay;
- 67.65.+z;
- 67.55.Hc;
- 67.55.Jd;
- Fermi-liquid theory and other phenomenological models;
- Spin-polarized hydrogen and helium;
- Transport properties;
- Collective modes;
- Condensed Matter - Statistical Mechanics;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 10 pages