Ultrafast extrinsic spin-Hall currents
Other Condensed Matter
2009-11-11 v1
Abstract
We consider the possibility of ultrafast extrinsic spin-Hall currents, generated by skew scattering following the optical injection of charge or pure spin currents. We propose a phenomenological model for this effect in quantum well structures. An injected charge current leads to a spin-Hall-induced pure spin current, and an injected pure spin current leads to a spin-Hall-induced charge current. The resulting spin or charge accumulation can be measured optically.
Keywords
Cite
@article{arxiv.cond-mat/0606725,
title = {Ultrafast extrinsic spin-Hall currents},
author = {E. Ya. Sherman and Ali Najmaie and H. M. van Driel and Arthur L. Smirl and J. E. Sipe},
journal= {arXiv preprint arXiv:cond-mat/0606725},
year = {2009}
}
Comments
18 pages, 3 figures