Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells

A. Homer; Austria); D.K. Maude; France); G. Heigl; Grenoble; G. Span; J.C. Portal (High Magnetic Field Laboratory; J. Oswald; P. Ganitzer (University of Leoben

arxiv: cond-mat/9707188 · v1 · submitted 1997-07-18 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells

J. Oswald , G. Span , A. Homer , G. Heigl , 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

keywords quantumhallcorrespondsobservedparabolicpbtesamestructure

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In PbTe wide parabolic quantum wells (WPQW) a plateau-like structure is observed in the Hall resistance, which corresponds to the Shubnikov-de Haas oscillations in the same manner as known from the quantum Hall effect. At the same time a non-local signal is observed which corresponds to the structure in Rxx and Rxy. We find a striking correspondence between a standard quantum Hall system and this quasi 3D WPQW system.

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Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells

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