We present a method for the efficient calculation of the electronic structure of semiconductors within the GW approach. It approximately includes dynamical-screening and local-field effects, previously disregarded in simplified GW approaches, without increasing the computational effort. Such effects substantially affect the gap corrections. We find quasiparticle shifts in good agreement with the complete GW calculations or experiment for Si, AlAs, GaAs and ZnSe.

Bechstedt, F., DEL SOLE, R., Cappellini, G., Reining, L. (1992). An efficient method for calculating quasiparticle energies in semiconductors. SOLID STATE COMMUNICATIONS, 84(7), 765-770.

An efficient method for calculating quasiparticle energies in semiconductors

DEL SOLE, RODOLFO;
1992-01-01

Abstract

We present a method for the efficient calculation of the electronic structure of semiconductors within the GW approach. It approximately includes dynamical-screening and local-field effects, previously disregarded in simplified GW approaches, without increasing the computational effort. Such effects substantially affect the gap corrections. We find quasiparticle shifts in good agreement with the complete GW calculations or experiment for Si, AlAs, GaAs and ZnSe.
1992
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
calculations; computational methods; crystal atomic structure; eigenvalues and eigenfunctions; energy gap; mathematical models; mathematical operators; density functional theory (DFT); Kohn Sham eigenvalues; local density approximation (LDA); quasiparticle shifts; semiconductor materials
Bechstedt, F., DEL SOLE, R., Cappellini, G., Reining, L. (1992). An efficient method for calculating quasiparticle energies in semiconductors. SOLID STATE COMMUNICATIONS, 84(7), 765-770.
Bechstedt, F; DEL SOLE, R; Cappellini, G; Reining, L
Articolo su rivista
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/6324
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact