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Exchange-correlatio...
Exchange-correlation energy of a hole gas including valence band coupling
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- Bobbert, PA (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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- Wieldraaijer, H (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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- van der Weide, R (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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- Kemerink, Martijn (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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- Koenraad, PM (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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- Wolter, JH (författare)
- COBRA Interuniversitary Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
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(creator_code:org_t)
- American Physical Society, 1997
- 1997
- Engelska.
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Ingår i: Physical Review B Condensed Matter. - : American Physical Society. - 0163-1829 .- 1095-3795. ; 56:7, s. 3664-3671
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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