Dynamic Hall Effect Driven by Circularly Polarized Light in a Graphene Layer
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 22, 227402- p.Article in journal (Refereed) Published
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 lights frequency.
Place, publisher, year, edition, pages
American Physical Society , 2010. Vol. 105, no 22, 227402- p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-63957DOI: 10.1103/PhysRevLett.105.227402ISI: 000284532900028OAI: oai:DiVA.org:liu-63957DiVA: diva2:384735
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, Rositsa Yakimova, S. Lara-Avila, S. Kubatkin and S.D. Ganichev, Dynamic Hall Effect Driven by Circularly Polarized Light in a Graphene Layer, 2010, Physical Review Letters, (105), 22, 227402.
Copyright: American Physical Society