Sum rules for spin-Hall conductivity cancelation
Mesoscale and Nanoscale Physics
2009-11-10 v1
Abstract
It has been shown recently that the universal dc spin conductivity of two-dimensional electrons with a Rashba spin-orbit interaction is canceled by vertex corrections in a weak scattering regime. We prove that the zero bulk spin conductivity is an intrinsic property of the free-electron Hamiltonian and scattering is merely a tool to reveal this property in terms of the diagrammatic technique. When Zeeman energy is neglected, the zero dc conductivity persists in a magnetic field. Spin conductivity increases resonantly at the cyclotron frequency and then decays towards the universal value.
Cite
@article{arxiv.cond-mat/0409476,
title = {Sum rules for spin-Hall conductivity cancelation},
author = {Emmanuel I. Rashba},
journal= {arXiv preprint arXiv:cond-mat/0409476},
year = {2009}
}
Comments
4 pages, 1 figure