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Helicity-dependent photocurrents in graphene layers excited by mid-infrared radiation of a CO₂-laser

URN to cite this document:
Chongyun Jiang, . ; Shalygin, V.A. ; Panevin, V. Yu. ; Danilov, Sergey N. ; Glazov, M. M. ; Yakimova, R. ; Lara-Avila, S. ; Kubatkin, S. ; Ganichev, Sergey
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Date of publication of this fulltext: 20 Mar 2013 11:17


We report the study of the helicity-driven photocurrents in graphene excited by midinfrared light of a CO₂ laser. Illuminating an unbiased monolayer sheet of graphene with circularly polarized radiation generates— under oblique incidence—an electric current perpendicular to the plane of incidence, whose sign is reversed by switching the radiation helicity. We show that the current is caused by ...


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