Published August 19, 1985
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Journal Article
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Density of States and de Haas—van Alphen Effect in Two-Dimensional Electron Systems
Chicago
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Abstract
The density of states of two-dimensional electron systems in GaAs/AlGaAs single-layer and multilayer heterostructures has been determined through measurements of the high-field magnetization. Our results reveal a substantial density of states between Landau levels, even in high-mobility single quantum wells. There is no existing theoretical explanation for this anomaly.
Additional Information
©1985 The American Physical Society Received 28 May 1985 It is a pleasure to thank W. Weigmann for growing some of the samples and K. Baldwin and A. Savage for their excellent technical assistance. We also thank T. Haavasoja for his help in the early stages of this work.Files
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