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Evolution of the interband absorption threshold with the density of a two-dimensional electron gas

S. A. Brown, Jeff F. Young, J. A. Brum, P. Hawrylak, and Z. Wasilewski
Phys. Rev. B 54, R11082(R) – Published 15 October 1996; Erratum Phys. Rev. B 56, 1637 (1997)
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Abstract

We have obtained absolute interband absorption spectra from a series of modulation-doped GaAs/Al0.3Ga0.7As multiple quantum wells covering a wide range of two-dimensional electron densities. The evolution of the threshold line shape from an exciton to a Fermi-edge singularity is quantified. We discuss the influence of the doubly occupied bound state (X) on the line shape and compare the results with realistic many-body calculations.

  • Received 8 April 1996

DOI:https://doi.org/10.1103/PhysRevB.54.R11082

©1996 American Physical Society

Erratum

Erratum: Evolution of the interband absorption threshold with the density of a two-dimensional electron gas [Phys. Rev. B 54, R11 082 (1996)]

S. A. Brown, Jeff F. Young, J. A. Brum, P. Hawrylak, and Z. Wasilewski
Phys. Rev. B 56, 1637 (1997)

Authors & Affiliations

S. A. Brown

  • School of Physics, University of New South Wales, Sydney 2052, Australia and Department of Physics, University of British Columbia, Vancouver, Canada

Jeff F. Young

  • Department of Physics, University of British Columbia, Vancouver, Canada

J. A. Brum

  • Instituto de Fisica, Universidade Estadual de Campinas, Campinas, Brazil

P. Hawrylak and Z. Wasilewski

  • Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Canada

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Vol. 54, Iss. 16 — 15 October 1996

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