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Density of states in a two-dimensional electron gas in a strong magnetic field

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Stahl, E. ; Weiss, Dieter ; Weinmann, G. ; Klitzing, Klaus von ; Ploog, K.
Date of publication of this fulltext: 05 Aug 2009 13:57


The authors have measured the density of states in the tails of the Landau levels of GaAs-AlxGa1-xAs heterostructures by analysing the variation of the Fermi level position as a function of the magnetic field. The experimental data are best described by a gaussian-like density of states superimposed on a constant background density of states.

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