Observation of the screening signature in the lateral photovoltage of electrons in the Quantum Hall regime

H. van Zalinge, B. Oezyilmaz, A. Boehm, R. W. van der Heijden, J. H. Wolter, P. Wyder

Published 2001-09-05Version 1

The lateral photovoltage generated in the plane of a two-dimensional electron system (2DES) by a focused light spot, exhibits a fine-structure in the quantum oscillations in a magnetic field near the Quantum Hall conductivity minima. A double peak structure occurs near the minima of the longitudinal conductivity oscillations. This is the characteristic signature of the interplay between screening and Landau quantization.