Density of States and Coulomb Interactions in the Integer Quantum Hall Effect

  • R. R. Gerhardts
  • V. Gudmundsson
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)

Abstract

We review recent Hartree calculations on the screening properties of a two-dimensional electron gas in a quantizing magnetic field in connection with a phenomenological statistical model invented to describe the density of states of an inhomogeneous system in the quantum Hall regime. A consistent picture of screening, inhomogeneous electron density and effective density of states at the Fermi level results which emphasizes the importance of Coulomb interactions even in the integer quantum Hall effect.

Keywords

GaAs 

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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • R. R. Gerhardts
    • 1
  • V. Gudmundsson
    • 1
  1. 1.Max-Planck-Institut für FestkörperforschungStuttgart 80Fed. Rep. of Germany

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