@article{372, keywords = {paper}, author = {Olivia Pulci and Maurizia Palummo and Olevano V and G Onida and Lucia Reining and Rodolfo Del Sole}, title = {Many-body effects on the electronic and optical properties of bulk GaP}, abstract = {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.}, year = {2001}, journal = {Phys. Stat. Sol. A}, volume = {188}, number = {4}, pages = {1261-1266}, month = {DEC 16}, publisher = {WILEY-V C H VERLAG GMBH}, address = {PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY}, note = {WE-Heraeus-Seminar: Optical Spectroscopy at Interfaces (OSI-2001), BAD HONNEF, GERMANY, MAY 20-23, 2001}, }