Current induced electron spin polarization in strained semiconductors
Mesoscale and Nanoscale Physics
2007-05-23 v1 Materials Science
Abstract
The polarization of conduction electron spins due to an electrical current is observed in strained nonmagnetic semiconductors using static and time-resolved Faraday rotation. The density, lifetime, and orientation rate of the electrically-polarized spins are characterized by a combination of optical and electrical methods. In addition, the dynamics of the current-induced spins are investigated by utilizing electrical pulses generated from a photoconductive switch. These results demonstrate the possibility of a spin source for semiconductor spintronic devices without the use of magnetic materials.
Cite
@article{arxiv.cond-mat/0403407,
title = {Current induced electron spin polarization in strained semiconductors},
author = {Y. Kato and R. C. Myers and A. C. Gossard and D. D. Awschalom},
journal= {arXiv preprint arXiv:cond-mat/0403407},
year = {2007}
}
Comments
5 pages, 4 figures, 1 table