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Edge currents driven by terahertz radiation in graphene in quantum Hall regime

Plank, Helene, Durnev, M. V. , Candussio, Susanne, Pernul, Johanna, Dantscher, Kathrin-Maria, Mönch, Erwin, Sandner, Andreas, Eroms, Jonathan , Weiss, Dieter, Belkov, Vassilij, Tarasenko, Sergey and Ganichev, Sergey (2018) Edge currents driven by terahertz radiation in graphene in quantum Hall regime. 2D Materials 1 (6), 0110021-0110027.

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Other URL: https://doi.org/10.1088/2053-1583/aae39c


We observe that the illumination of unbiased graphene in the quantum Hall regime with polarized terahertz laser radiation results in a direct edge current. This photocurrent is caused by an imbalance of persistent edge currents, which are driven out of thermal equilibrium by indirect transitions within the chiral edge channel. The direction of the edge photocurrent is determined by the polarity ...


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Item type:Article
Date:10 October 2018
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Projects:SFB 1277: Emergente relativistische Effekte in der Kondensierten Materie: Von grundlegenden Aspekten zu elektronischer Funktionalität, GRK 1570, Elektronische Eigenschaften von Nanostrukturen auf Kohlenstoff-Basis, Elite Network of Bavaria (K-NW-2013-247)
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Keywords:graphene, terahertz radiation, edge currents, quantum Hall regime
Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38396
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