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Anomalous temperature dependence of commensurability oscillations in one- and two-dimensional lateral superlattices

DOI to cite this document:
Mitzkus, Christian ; Kangler, W. ; Weiss, Dieter ; Wegscheider, Werner ; Umansky, V.
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Date of publication of this fulltext: 07 Dec 2009 13:16


Two-dimensional electron systems were laterally modulated using the method of in situ interferometric illumination. Magnetotransport measurements on 1D and 2D modulated systems revealed a phase change of the commensurability oscillations depending on temperature. This behaviour is surprising and cannot be explained by existing theories.

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