Intrinsic Spin Hall Effect: Topological Transitions in Two-Dimensional Systems
Mesoscale and Nanoscale Physics
2009-11-13 v1
Abstract
The spin-Hall conductivity in spatially-homogeneous two-dimensional electron systems described by the spin-orbit Hamiltonian \hbar \Omega_p \sigma is presented as a sum of the universal part Me/8 \pi \hbar determined by the Berry phase \Phi=M \pi (M is an odd integer, the winding number of the vector \Omega_p) and a non-universal part which vanishes under certain conditions determined by the analytical properties of \Omega_p. The analysis reveals a rich and complicated behavior of the spin-Hall conductivity which is relevant to both electron and hole states in quantum wells and can be detected in experiments.
Cite
@article{arxiv.0706.2482,
title = {Intrinsic Spin Hall Effect: Topological Transitions in Two-Dimensional Systems},
author = {O. E. Raichev},
journal= {arXiv preprint arXiv:0706.2482},
year = {2009}
}