Dynamic Hall Effect Driven by Circularly Polarized Light in a Graphene Layer
Artikel i vetenskaplig tidskrift, 2010
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 E and B fields which are, however rotating with the light's frequency.
photon drag
Författare
J. Karch
P. Olbrich
M. Schmalzbauer
C. Zoth
C. Brinsteiner
M. Fehrenbacher
U. Wurstbauer
M. M. Glazov
S. A. Tarasenko
E. L. Ivchenko
D. Weiss
J. Eroms
R. Yakimova
Samuel Lara Avila
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Sergey Kubatkin
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
S. D. Ganichev
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 105 22Ämneskategorier
Fysik
DOI
10.1103/PhysRevLett.105.227402