Hall Voltage with the Spin Hall Effect
介观与纳米尺度物理
2008-03-23 v1 材料科学
摘要
The spin Hall effect does not generally result in a charge Hall voltage. We predict that in systems with inhomogeneous electron density in the direction perpendicular to main current flow, the spin Hall effect is instead accompanied by a Hall voltage. Unlike the ordinary Hall effect, we find that this Hall voltage is quadratic in the longitudinal electric field for a wide range of parameters accessible experimentally. We also predict spin accumulation in the bulk and sharp peaks of spin-Hall induced charge accumulation near the edges. Our results can be readily tested experimentally, and would allow the electrical measurement of the spin Hall effect in non-magnetic systems and without injection of spin-polarized electrons.
引用
@article{arxiv.cond-mat/0703310,
title = {Hall Voltage with the Spin Hall Effect},
author = {Yu. V. Pershin and M. Di Ventra},
journal= {arXiv preprint arXiv:cond-mat/0703310},
year = {2008}
}