On the Nature of Spin Currents
Other Condensed Matter
2009-11-10 v2
Abstract
Full expressions for finite frequency spin and charge conductivity 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, the Luttinger case is different. Moreover, for a generalized Rashba-type coupling the two quantities also exhibit different frequency dependencies.
Keywords
Cite
@article{arxiv.cond-mat/0406153,
title = {On the Nature of Spin Currents},
author = {B. A. Bernevig},
journal= {arXiv preprint arXiv:cond-mat/0406153},
year = {2009}
}
Comments
4 pages, extra discussion on spin susceptibility and references added