L. A. Ponomarenko, D. T. N. de Lang, A. de Visser, V. A. Kulbachinskii, G. B. Galiev, H. Künzel, A. M. M. Pruisken
Published 2003-06-03Version 1
We have measured magnetotransport of the two-dimensional electron gas in a Hall bar geometry in the presence of small carrier density gradients. We find that the longitudinal resistances measured at both sides of the Hall bar interchange by reversing the polarity of the magnetic field. We offer a simple explanation for this effect and discuss implications for extracting conductivity flow diagrams of the integer quantum Hall effect.
Comments: 7 pages, 8 figures
Journal: Solid State Communications 130 (2004) 705
Nonlinearity of Acoustic Effects and High-Frequency Electrical Conductivity in GaAs/AlGaAs Heterostructures under Conditions of the Integer Quantum Hall Effect
A model for the study of the Shubnikov-de Haas and the integer quantum Hall effects in a two dimensional electronic system
Study of critical behavior of the supersymmetric spin chain that models plateau transitions in the integer quantum Hall effect
