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Magnetoresistance oscillations in a grid potential: Indication of a Hofstadter-type energy spectrum

URN to cite this document:
urn:nbn:de:bvb:355-epub-78601
Gerhardts, R. ; Weiss, Dieter ; Wulf, U.
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Date of publication of this fulltext: 05 Aug 2009 13:57


Abstract

We present experimental and theoretical results on magnetoresistivity oscillations of high-mobility two-dimensional electron systems in a weak superlattice potential. Experimentally, the band conductivity of a sample with a holographically produced grid potential is shown to be considerably smaller than that of the same sample with a similar linear grating potential of the same lattice ...

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