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Magnetoresistance Oscillations in a Two-Dimensional Electron Gas Induced by a Submicrometer Periodic Potential

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DOI to cite this document:
Weiss, Dieter ; Klitzing, Klaus von ; Ploog, K. ; Weimann, G.
Date of publication of this fulltext: 05 Aug 2009 13:57


A new type of magnetoresistance oscillation periodic in 1/B is observed when the carrier density Ns of a two-dimensional electron gas is weakly modulated with a period smaller than the mean free path of the electrons. Experiments with high mobility AlGaAs-GaAs heterojunctions where Ns is modulated by holographic illumination at T ¡Ü 4.2 K show that the period of the additional quantum ...


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