Spin polarization in biased Rashba-Dresselhaus two-dimensional electron systems
Other Condensed Matter
2009-11-13 v1 Disordered Systems and Neural Networks
Abstract
Based on spin-charge coupled drift-diffusion equations, which are derived from kinetic equations for the spin-density matrix in a rigorous manner, the electric-field-induced nonequilibrium spin polarization is treated for a two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit coupling. Most emphasis is put on the consideration of the field-mediated spin dynamics for a model with equal Rashba and Dresselhaus coupling constants, in which the spin relaxation is strongly suppressed. Weakly damped electric-field-induced spin excitations are identified, which remind of space-charge waves in crystals.
Cite
@article{arxiv.0709.2054,
title = {Spin polarization in biased Rashba-Dresselhaus two-dimensional electron systems},
author = {P. Kleinert and V. V. Bryksin},
journal= {arXiv preprint arXiv:0709.2054},
year = {2009}
}
Comments
12 pages