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Exchange-correlation energy of a hole gas including valence band coupling
COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands.
COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands.
COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands.
COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands.ORCID-id: 0000-0002-7104-7127
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1997 (Engelska)Ingår i: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 56, nr 7, s. 3664-3671Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
American Physical Society , 1997. Vol. 56, nr 7, s. 3664-3671
Nationell ämneskategori
Den kondenserade materiens fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-141540DOI: 10.1103/PhysRevB.56.3664ISI: A1997XR96400039OAI: oai:DiVA.org:liu-141540DiVA, id: diva2:1145541
Tillgänglig från: 2017-09-29 Skapad: 2017-09-29 Senast uppdaterad: 2017-11-29

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Kemerink, Martijn
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