Circular ac Hall Effect
Mesoscale and Nanoscale Physics
2010-08-13 v1
Abstract
We report the observation of the circular ac Hall effect where the current is solely driven by the crossed ac electric and magnetic fields of circularly polarized radiation. Illuminating an unbiased monolayer sheet of graphene with circularly polarized terahertz radiation at room temperature generates - under oblique incidence - an electric current perpendicular to the plane of incidence, whose sign is reversed by switching the radiation helicity. Alike the classical dc Hall effect, the voltage is caused by crossed electric and magnetic fields which are however rotating with the light's frequency.
Cite
@article{arxiv.1008.2116,
title = {Circular ac Hall Effect},
author = {J. Karch and P. Olbrich and M. Schmalzbauer and C. Zoth and C. Brinsteiner and M. Fehrenbacher and U. Wurstbauer and M. M. Glazov and S. A. Tarasenko and E. L. Ivchenko and D. Weiss and J. Eroms and R. Yakimova and S. Lara-Avila and S. Kubatkin and S. D. Ganichev},
journal= {arXiv preprint arXiv:1008.2116},
year = {2010}
}
Comments
4 pages, 5 figures