Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells

Details Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells Edge Channel Dominated Magnetotransport in PbTe Wide Parabolic Quantum Wells

1997-07-18

arxiv.org/abs/cond-mat/9707188v1

Physics

Condensed Matter

Materials Science

postscript file including 2 figs, 4 pages, paper presented at the 8th Int. Conf. on Narrow Gap Semiconductors, Shanghai April

Scientific paper

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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