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Exchange-correlation energy of a hole gas including valence band coupling
Eindhoven University of Technology, The Netherlands.
Eindhoven University of Technology, The Netherlands.
Eindhoven University of Technology, The Netherlands.
Linköping University, Department of Physics, Chemistry and Biology, Chemical and Optical Sensor Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-7104-7127
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1997 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 56, no 7, 3664-3671 p.Article in journal (Refereed) Published
Abstract [en]

We have calculated an accurate exchange-correlation energy of a hole gas, including the complexities related to the valence band coupling as occurring in semiconductors like GaAs, but excluding the band warping. A parametrization for the dependence on the density and the ratio between light-and heavy-hole masses is given. We apply our results to a hole gas in an AlxGa1-xAs/GaAs/AlxGa1-xAs quantum well and calculate the two-dimensional band structure and the band-gap renormalization. The inclusion of the valence band coupling in the calculation of the exchange-correlation potentials for holes and electrons leads to a much better agreement between theoretical and experimental data than when it is omitted.

Place, publisher, year, edition, pages
American Physical Society , 1997. Vol. 56, no 7, 3664-3671 p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-116065DOI: 10.1103/PhysRevB.56.3664ISI: A1997XR96400039OAI: oai:DiVA.org:liu-116065DiVA: diva2:813299
Available from: 2015-05-22 Created: 2015-03-24 Last updated: 2015-05-29

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Kemerink, Martijn
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Chemical and Optical Sensor SystemsThe Institute of Technology
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