Thermodynamic properties of an interacting two-dimensional electron gas in a strong magnetic field

A. H. MacDonald, H. C. A. Oji, and K. L. Liu
Phys. Rev. B 34, 2681 – Published 15 August 1986
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Abstract

We have studied the combined effects of interaction and disorder on the entropy, the specific heat, and the magnetization of a two-dimensional electron gas in a strong perpendicular magnetic field. Explicit results have been obtained within the Hartree-Fock approximation which reflects only those anomalies associated with the energy gap between Landau levels. Some qualitative remarks, based on the hierarchy picture, are made concerning features expected in these thermodynamic properties at fractional values of the Landau-level filling factor.

  • Received 29 January 1986

DOI:https://doi.org/10.1103/PhysRevB.34.2681

©1986 American Physical Society

Authors & Affiliations

A. H. MacDonald, H. C. A. Oji, and K. L. Liu

  • National Research Council of Canada, Ottawa, Canada K1A?6

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Vol. 34, Iss. 4 — 15 August 1986

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