Density of states and de Haas-van Alphen effect in two-dimensional electron systems

Eisenstein, J. P. ; Stormer, H. L. ; Narayanamurti, V. ; Cho, A. Y. ; Gossard, A. C. ; Tu, C. W. (1985) Density of states and de Haas-van Alphen effect in two-dimensional electron systems Physical Review Letters, 55 (8). pp. 875-878. ISSN 0031-9007

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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.55.875

Related URL: http://dx.doi.org/10.1103/PhysRevLett.55.875

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.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:30648
Deposited On:23 Dec 2010 12:58
Last Modified:11 Jun 2011 07:02

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