Spin Current Generation and Detection in the Presence of AC Gate
Mesoscale and Nanoscale Physics
2007-05-23 v2
Abstract
We predict that in a narrow gap III-V semiconductor quantum well or a wire an observable spin current can be generated with a time dependent gate to modify the Rashba spin-orbit coupling constant. Methods to rectify the so generated AC current are discussed. An all-electric method of spin current detection is suggested, which measures the voltage on the gate in the vicinity of a 2D electron gas carrying a time dependent spin current. Both the generation and detection do not involve any optical or magnetic mediators.
Cite
@article{arxiv.cond-mat/0211559,
title = {Spin Current Generation and Detection in the Presence of AC Gate},
author = {A. G. Mal'shukov and C. S. Tang and C. S. Chu and K. A. Chao},
journal= {arXiv preprint arXiv:cond-mat/0211559},
year = {2007}
}
Comments
4 pages, 2 figures, final version to be published in Phys. Rev. B