Quantum transport in parallel magnetic fields: A realization of the Berry-Robnik symmetry phenomenon

Abstract

We analyze the magnetoconductance of two-dimensional electron and hole gases (2DEGs) subject to a parallel magnetic field. It is shown that, for confining potential wells which are symmetric with respect to spatial inversion, a temperature-dependent weak localization signal exists even in the presence of a magnetic field. Deviations from this symmetry lead to magnetoconductance profiles that contain information on both, the geometry of the confining potential and characteristics of the disorder.

4 pages, 3 figures included

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