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Terahertz Radiation Driven Chiral Edge Currents in Graphene

Karch, Johannes and Drexler, Christoph and Olbrich, Peter and Fehrenbacher, M. and Hirmer, M. and Glazov, M. M. and Tarasenko, Sergey and Ivchenko, Eougenious and Birkner, Bastian and Eroms, Jonathan and Weiss, Dieter and Yakimova, R. and Lara-Avila, S. and Kubatkin, S. and Ostler, M. and Seyller, T. and Ganichev, Sergey (2011) Terahertz Radiation Driven Chiral Edge Currents in Graphene. Physical Review Letters (PRL) 107, p. 276601.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevLett.107.276601


Abstract

We observe photocurrents induced in single-layer graphene samples by illumination of the graphene edges with circularly polarized terahertz radiation at normal incidence. The photocurrent flows along the sample edges and forms a vortex. Its winding direction reverses by switching the light helicity from left to right handed. We demonstrate that the photocurrent stems from the sample edges, which ...

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Item Type:Article
Date:27 December 2011
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group John Lupton
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Projects:GRK 1570, Elektronische Eigenschaften von Nanostrukturen auf Kohlenstoff-Basis
Identification Number:
ValueType
10.1103/PhysRevLett.107.276601DOI
Classification:
NotationType
72.80.Vp, 73.50.Pz, 78.67.Wj, 81.05.ue PACS
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Claudia Rahm
Deposited On:28 Feb 2012 08:34
Last Modified:13 Mar 2014 18:40
Item ID:23507
Owner Only: item control page

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