On the nature of spin currents in Rashba and Luttinger-type systems

被引：14

作者：

Bernevig, BA ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.71.073201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Full expressions for finite frequency spin, charge conductivity, and spin susceptibility in Rashba- and Luttinger-type systems are given. Whereas in the Rashba Hamiltonian the spin conductivity has the same frequency dependence as the dielectric polarizability [E. I. Rashba, cond-mat/0404723] and magnetic susceptibility [S. Erlinasson et al., cond-mat/0406531; O. Dimitrova, cond-niat/0407612], the Luttinger case is different. Moreover, for a generalized Rashba-type coupling the three quantities also exhibit different frequency dependencies.

引用

页数：4

共 8 条

[1]

DIMITROVA OV, CONDMAT0407612

[2] Spin susceptibilities, spin densities, and their connection to spin currents [J].