Reststrahlen Band assisted photocurrents in graphene
Paper in proceeding, 2013
We report on the experimental and theoretical study of the Reststrahlen Band assisted photocurrents in epitaxial grown graphene on SiC. We show that excitation of graphene with infrared radiation results in a dc current. We demonstrate that photocurrent in response to linearly polarized radiation exhibit a resonance enhancement in the frequency range of the Reststrahlen Band of the SiC substrate. By contrast the photocurrent excited by circularly polarized radiation is suppressed in the same spectral range. The developed theory is in agreement with the data and reveals a strong influence of the Reststrahl Band on the high frequency transport in graphene.
Author
C. Drexler
University of Regensburg
L.E. Golub
Russian Academy of Sciences
S.N. Danilov
University of Regensburg
V.A. Shalygin
Peter the Great St. Petersburg Polytechnic University
P. Olbrich
University of Regensburg
R. Huber
University of Regensburg
R. Yakimova
Linköping University
Samuel Lara Avila
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Sergey Kubatkin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
B. Redlich
FOM Institute for Plasma Physics - Rijnhuizen
S.D. Ganichev
University of Regensburg
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
21622027 (ISSN) 21622035 (eISSN)
978-1-4673-4717-4 (ISBN)
Subject Categories
Nano Technology
DOI
10.1109/IRMMW-THz.2013.6665561
ISBN
978-1-4673-4717-4