Topological spin current
Mesoscale and Nanoscale Physics
2007-05-23 v4
Abstract
We present an exact derivation for non-commuting coordinates induced by the SU(2) transformation used to diagonalize the spin-orbit hamiltonian in two dimension.As a result an exact non-dissipative Hall current less sensitive to disorder and complementary to the dissipative conductivity is found. We compute the non-dissipative charge and spin-Hall conductance for the spin-orbit problem.We find that the spin-Hall conductance is quantized in units of .In the presence of a Zeeman interaction the charge-Hall conductivity is proportional to the magnetic field. We propose an experiment to test our theory.
Keywords
Cite
@article{arxiv.cond-mat/0406565,
title = {Topological spin current},
author = {D. Schmeltzer},
journal= {arXiv preprint arXiv:cond-mat/0406565},
year = {2007}
}