Diffuse transport and spin accumulation in a Rashba two-dimensional electron gas
Mesoscale and Nanoscale Physics
2009-11-07 v1
Abstract
The Rashba Hamiltonian describes the splitting of the conduction band as a result of spin-orbit coupling in the presence of an asymmetric confinement potential and is commonly used to model the electronic structure of confined narrow-gap semiconductors. Due to the mixing of spin states some care has to be exercised in the calculation of transport properties. We derive the diffusive conductance tensor for a disordered two-dimensional electron gas with spin-orbit interaction and show that the applied bias induces a spin accumulation, but that the electric current is not spin-polarized.
Cite
@article{arxiv.cond-mat/0211153,
title = {Diffuse transport and spin accumulation in a Rashba two-dimensional electron gas},
author = {Jun-ichiro Inoue and Gerrit E. W. Bauer and Laurens W. Molenkamp},
journal= {arXiv preprint arXiv:cond-mat/0211153},
year = {2009}
}
Comments
REVTeX4 format, 5 pages