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 (MC2), Kvantkomponentfysik

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

S. D. Ganichev

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 105 22

Ämneskategorier

Fysik

DOI

10.1103/PhysRevLett.105.227402

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Skapat

2017-10-07