Observation of the screening signature in the lateral photovoltage of electrons in the Quantum Hall regime
arXiv:cond-mat/0109087 · doi:10.1103/PhysRevB.64.235303
Abstract
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.
4 pages, 4 figures, to be published in Phys. Rev. B