Reststrahlen Band assisted photocurrents in graphene
Paper i 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.

Författare

C. Drexler

Universität Regensburg

L.E. Golub

Ioffe Institute

S.N. Danilov

Universität Regensburg

V.A. Shalygin

Peter the Great St. Petersburg Polytechnic University

P. Olbrich

Universität Regensburg

R. Huber

Universität Regensburg

R. Yakimova

Linköpings universitet

Samuel Lara Avila

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

B. Redlich

FOM Institute for Plasma Physics - Rijnhuizen

S.D. Ganichev

Universität Regensburg

2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013; Mainz; Germany; 1 September 2013 through 6 September 2013

2162-2035 (eISSN)

Ämneskategorier

Nanoteknik

DOI

10.1109/IRMMW-THz.2013.6665561

ISBN

978-1-4673-4717-4