Screening Model of Magnetotransport Hysteresis Observed in Bilayer Quantum Hall Systems

Abstract

We report on theoretical and experimental investigations of a novel hysteresis effect that has been observed on the magnetoresistance of quantum-Hall bilayer systems. Extending to these system a recent approach, based on the Thomas-Fermi-Poisson nonlinear screening theory and a local conductivity model, we are able to explain the hysteresis as being due to screening effects such as the formation of ``incompressible strips'', which hinder the electron density in a layer within the quantum Hall regime to reach its equilibrium distribution.

arXiv comment9 pages, 4 figures, to appear in Physica E

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Cited by in corpus (10)

• Self-consistent calculation of the electron distribution near a Quantum-Point Contact in the integer Quantum Hall Effect
• Realistic modelling of quantum point contacts subject to high magnetic fields and with current bias at out of linear response regime
• Self-consistent Coulomb picture of an electron-electron bilayer system
• The effect of sample properties on the electron velocity in quantum Hall bars
• Charge metastability and hysteresis in the quantum Hall regime
• Dynamics of Density Imbalanced Bilayer Holes in the Quantum Hall Regime
• Theoretical Investigation of Local Electron Temperature in Quantum Hall Systems
• The visibility of IQHE at sharp edges: Experimental proposals based on interactions and edge electrostatics
• Distribution of an Ohmic current in the close vicinity of a quantum point contact
• A self-consistent microscopic model of Coulomb interaction in a bilayer system as an origin of Drag Effect Phenomenon