Induced currents, frozen charges and the quantum Hall effect breakdown
K.V. Kavokin, M.E. Portnoi, A.J. Matthews, J. Gething, A. Usher, D.A., Ritchie, M.Y. Simmons
TL;DR
This paper investigates the phenomena of induced currents and charge redistribution in the quantum Hall effect regime, proposing a theory to explain observed magnetic moment saturation and QHE breakdown.
Contribution
It introduces a new theoretical explanation linking charge redistribution to magnetic saturation, challenging traditional views on QHE breakdown.
Findings
Magnetic moment saturation is related to charge redistribution.
Proposed theory explains puzzling torque magnetometry results.
New insights into the mechanisms of QHE breakdown.
Abstract
Puzzling results obtained from torque magnetometry in the quantum Hall effect (QHE) regime are presented, and a theory is proposed for their explanation. Magnetic moment saturation, which is usually attributed to the QHE breakdown, is shown to be related to the charge redistribution across the sample.
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