Conductance Fluctuations in PbTe Wide Parabolic Quantum Wells

Details Conductance Fluctuations in PbTe Wide Parabolic Quantum Wells Conductance Fluctuations in PbTe Wide Parabolic Quantum Wells

1997-07-16

arxiv.org/abs/cond-mat/9707160v1

Physica B 227, 360 (1996)

Physics

Condensed Matter

Materials Science

postscript file including 3 figs, 3 pages, Paper presented at 3rd Int. Symposium on "New Phenomena in Mesoscopic Structures" i

Scientific paper

10.1016/0921-4526(96)00442-5

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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