We present an ab-initio study of GaP bulk as a test case to show the importance of going beyond the single particle Density Functional Theory (DFT) scheme in the calculation of excited state properties. The inclusion of many-body effects within the GW approach for the determination of electronic gaps, and of excitonic effects in the calculations of the dielectric function, is discussed. Comparison with one-particle DFT results and with experimental data are presented.
Many-body effects on the electronic and optical properties of bulk GaP / O. Pulci, M. Palummo, V. Olevano, G. Onida, L. Reining, R. Del Sole. - In: PHYSICA STATUS SOLIDI. A, APPLIED RESEARCH. - ISSN 0031-8965. - 188:4(2001), pp. 1261-1266.
Titolo: | Many-body effects on the electronic and optical properties of bulk GaP |
Autori: | |
Settore Scientifico Disciplinare: | Settore FIS/03 - Fisica della Materia |
Data di pubblicazione: | 2001 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/1521-396X(200112)188:4<1261::AID-PSSA1261>3.0.CO;2-1 |
Appare nelle tipologie: | 01 - Articolo su periodico |