Transverse spin dynamics in a spin-polarized Fermi liquid

被引：19
|
作者：
Mineev, VP [1 ]
机构：
[1] SPSMS, Dept Rech Fondamentale Mat Condensee, DSM, Commiss Energie Atom, F-38054 Grenoble, France
来源：
PHYSICAL REVIEW B | 2004年 / 69卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.69.144429
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The linear equations for transverse spin dynamics in a weakly polarized degenerate Fermi liquid with arbitrary relationship between temperature T and polarization gammaH 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.
引用
收藏
页码：144429 / 1
页数：8
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