Dimensionality-dependent self energy ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Dimensionality-dependent self energy corrections and exchange-correlation potential in semiconductor nanostructures
Author(s) :
Delerue, Christophe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Lannoo, Michel [Auteur]
Institut des Sciences de l'Evolution de Montpellier [UMR ISEM]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Lannoo, Michel [Auteur]
Institut des Sciences de l'Evolution de Montpellier [UMR ISEM]
Journal title :
Physical Review Letters
Pages :
076803/1-4
Publisher :
American Physical Society
Publication date :
2003-02-18
ISSN :
0031-9007
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
We study the quasiparticle gap in semiconductor nanostructures versus dimensionality and compare it to the value obtained in the local density approximation. We first develop general arguments based on the GW approach which ...
Show more >We study the quasiparticle gap in semiconductor nanostructures versus dimensionality and compare it to the value obtained in the local density approximation. We first develop general arguments based on the GW approach which we then substantiate numerically by a tight binding version of this theory. We show that the gap correction is dominated by a macroscopic surface self-polarization term and point out its nonmonotonic behavior versus dimensionalityShow less >
Show more >We study the quasiparticle gap in semiconductor nanostructures versus dimensionality and compare it to the value obtained in the local density approximation. We first develop general arguments based on the GW approach which we then substantiate numerically by a tight binding version of this theory. We show that the gap correction is dominated by a macroscopic surface self-polarization term and point out its nonmonotonic behavior versus dimensionalityShow less >
Language :
Anglais
Popular science :
Non
Source :