Huge Longitudinal Resistance in the Fractional Quantum Hall Effect Regime

Huge Longitudinal Resistance in the Fractional Quantum Hall Effect Regime

The magneto resistance of a narrow single quantum well is spectacularly different from the usual behavior. At filling factors 2/3 and 3/5 we observe large and sharp maxima in the longitudinal resistance instead of the expected minima. The peak value of the resistance exceeds those of the surrounding...

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Veröffentlicht in:arXiv.org 1998-04
Hauptverfasser: Kronmueller, S, Dietsche, W, Weis, J, Klitzing, K v, Wegscheider, W, Bichler, M
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Electron states
Quantum Hall effect
Quantum wells
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Dietsche, W
Weis, J
Klitzing, K v
Wegscheider, W
Bichler, M
description The magneto resistance of a narrow single quantum well is spectacularly different from the usual behavior. At filling factors 2/3 and 3/5 we observe large and sharp maxima in the longitudinal resistance instead of the expected minima. The peak value of the resistance exceeds those of the surrounding magnetic field regions by a factor of up to three. The formation of the maxima takes place on very large time scales which suggests a close relation with nuclear spins. We discuss the properties of the observed maxima due to a formation of domains of different electronic states.
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subjects Domains
Electron states
Quantum Hall effect
Quantum wells
title Huge Longitudinal Resistance in the Fractional Quantum Hall Effect Regime
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