Exchange-correlation energy of a hole gas including valence band coupling
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 hea...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
15 August 1997
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| In: |
Physical review. B, Condensed matter and materials physics
Year: 1997, Jahrgang: 56, Heft: 7, Pages: 3664-3671 |
| ISSN: | 1550-235X |
| DOI: | 10.1103/PhysRevB.56.3664 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1103/PhysRevB.56.3664 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.56.3664 
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| Verfasserangaben: | P.A. Bobbert, H. Wieldraaijer, R. van der Weide, M. Kemerink, P.M. Koenraad, and J.H. Wolter |
| Zusammenfassung: | 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. |
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| Beschreibung: | Gesehen am 10.12.2019 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-235X |
| DOI: | 10.1103/PhysRevB.56.3664 |