New Resistance Maxima in the Fractional Quantum Hall Effect Regime

DOI to cite this document:: 10.5283/epub.10882

Kronmüller, S. ; Dietsche, W. ; Weis, J. ; Klitzing, Klaus von ; Wegscheider, Werner ; Bichler, Max

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Date of publication of this fulltext: 09 Nov 2009 13:18

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Abstract

The magnetoresistance 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 3. The formation of the maxima takes place on very ...