Transport Equations and Spin-Charge Propagating Mode in the Two Dimensional Hole Gas
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
We find that the spin-charge motion in a strongly confined two-dimensional hole gas (2DHG) supports a propagating mode of cubic dispersion apart from the diffusive mode due to momentum scattering. Propagating modes seem to be a generic property of systems with spin-orbit coupling. Through a rigorous Keldysh approach, we obtain the transport equations for the 2DHG, we analyze the behavior of the hole spin relaxation time, the diffusion coefficients, and the spin-charge coupled motion.
Keywords
Cite
@article{arxiv.cond-mat/0601353,
title = {Transport Equations and Spin-Charge Propagating Mode in the Two Dimensional Hole Gas},
author = {Taylor L. Hughes and B. Andrei Bernevig and Yaroslaw B. Bazaliy},
journal= {arXiv preprint arXiv:cond-mat/0601353},
year = {2009}
}