Microwave photoconductivity of a modulated two-dimensional electron gas due to intra-Landau-level transitions

TY - JOUR

T1 - Microwave photoconductivity of a modulated two-dimensional electron gas due to intra-Landau-level transitions

AU - Joas, Christian

AU - Dietel, Jürgen

AU - Von Oppen, Felix

PY - 2005/10/15

Y1 - 2005/10/15

N2 - Motivated by a recent experiment, we study the microwave-induced photoconductivity of a two-dimensional electron gas arising from intra-Landau-level transitions within a model where the electrons are subject to a unidirectional periodic potential in addition to a weaker impurity potential. With appropriate identifications, our results can be compared to experiment and allow us to explain the sign of the photocurrent, its dependence on magnetic field and microwave frequency, as well as the microwave-induced suppression of the Shubnikov-deHaas oscillations.

AB - Motivated by a recent experiment, we study the microwave-induced photoconductivity of a two-dimensional electron gas arising from intra-Landau-level transitions within a model where the electrons are subject to a unidirectional periodic potential in addition to a weaker impurity potential. With appropriate identifications, our results can be compared to experiment and allow us to explain the sign of the photocurrent, its dependence on magnetic field and microwave frequency, as well as the microwave-induced suppression of the Shubnikov-deHaas oscillations.

UR - http://www.scopus.com/inward/record.url?scp=29644435827&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.72.165323

DO - 10.1103/PhysRevB.72.165323

M3 - Journal article

AN - SCOPUS:29644435827

SN - 1098-0121

VL - 72

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 16

M1 - 165323

ER -