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Fermi-Edge Singularities and Enhanced Magnetoexcitons in GaAs and (In,Ga) As Square, and (Ga,AlAs) Parabolic Single Quantum Wells

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Low-Dimensional Electronic Systems

Part of the book series: Springer Series in Solid-State Sciences ((SSSOL,volume 111))

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Abstract

We have studied the Coulomb perturbation by photoholes on a free electron gas in modulation doped square and parabolic single quantum wells. This range of structures, from quasi-2D to quasi-3D limits, has helped us to quantify spectral information from Fermi-edge singularities in magneto-luminescence, formed by screening of the holes by the mobile electrons. In particular, we show how empty nearby conduction subbands can be used to tune such “many electron exciton” phenomena. As an example, a typical value for the electron-hole interaction of Ve-h ≈ 0.6 meV is deduced in the quasi-2D case.

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Author information

Authors and Affiliations

  1. Division of Engineering and Department of Physics, Brown University, Providence, RI, 02912, USA

    W. Chen, M. Fritze & A. V. Nurmikko

Authors
  1. W. Chen
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  2. M. Fritze
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  3. A. V. Nurmikko
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Editor information

Editors and Affiliations

  1. Institut für Halbleiterphysik, Universität Linz, A-4040, Linz, Austria

    Günther Bauer

  2. Institut für Festkörperphysik, Universität Wien, A-1090, Wien, Austria

    Friedemar Kuchar

  3. Institut für Experimentalphysik, Universität Linz, A-4040, Linz, Austria

    Helmut Heinrich

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© 1992 Springer-Verlag Berlin Heidelberg

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Chen, W., Fritze, M., Nurmikko, A.V. (1992). Fermi-Edge Singularities and Enhanced Magnetoexcitons in GaAs and (In,Ga) As Square, and (Ga,AlAs) Parabolic Single Quantum Wells. In: Bauer, G., Kuchar, F., Heinrich, H. (eds) Low-Dimensional Electronic Systems. Springer Series in Solid-State Sciences, vol 111. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84857-5_28

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  • DOI: https://doi.org/10.1007/978-3-642-84857-5_28

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-84859-9

  • Online ISBN: 978-3-642-84857-5

  • eBook Packages: Springer Book Archive

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