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arxiv: cond-mat/9707160 · v1 · submitted 1997-07-16 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

Conductance Fluctuations in PbTe Wide Parabolic Quantum Wells

J. Oswald , G. Heigl , G. Span , A.Homer , P.Ganitzer (University of Leoben , Austria) , D.K. Maude , J.C. Portal (High Magnetic Field Laboratory
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Grenoble France)
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classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hall
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We report on conductance fluctuations which are observed in local and non-local magnetotransport experiments. Although the Hall bar samples are of macroscopic size, the amplitude of the fluctuations from the local measurements is close to e^2/h. It is shown that the fluctuations have to be attributed to edge channel effects.

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