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Huge Longitudinal Resistance in the Fractional Quantum Hall Effect Regime

S. Kronmueller·W. Dietsche·J. Weis·K. v. Klitzing·W. Wegscheider·M. Bichler
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Abstract

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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S. Kronmueller, W. Dietsche, J. Weis, K. v. Klitzing, W. Wegscheider, M. Bichler. 1998-04-27. Huge Longitudinal Resistance in the Fractional Quantum Hall Effect Regime. https://arxiv.org/abs/cond-mat/9804283

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