Determining the spin Hall conductance via charge transport
介观与纳米尺度物理
2009-11-11 v1
摘要
We propose a scheme where transport measurements of charge current and its noise can be used to determine the spin Hall conductance in a four-terminal setup. Starting from the scattering formalism we express the spin current and spin Hall conductance in terms of spin-dependent transmission coefficients. These coefficients are then expressed in terms of charge current and noise. We use the scheme to characterize the spin injection efficiency of a ferromagnetic/semiconductor interface.
引用
@article{arxiv.cond-mat/0503605,
title = {Determining the spin Hall conductance via charge transport},
author = {Sigurdur I. Erlingsson and Daniel Loss},
journal= {arXiv preprint arXiv:cond-mat/0503605},
year = {2009}
}
备注
Revtex4, 4 pages and two eps figures