TY - JOUR
KW - paper
AU - Olivia Pulci
AU - Maurizia Palummo
AU - Olevano V
AU - G Onida
AU - Lucia Reining
AU - Rodolfo Del Sole
AB - 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.
BT - Phys. Stat. Sol. A
CY - PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
DA - DEC 16
M1 - 4
N1 - WE-Heraeus-Seminar: Optical Spectroscopy at Interfaces (OSI-2001), BAD HONNEF, GERMANY, MAY 20-23, 2001
N2 - 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.
PB - WILEY-V C H VERLAG GMBH
PP - PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
PY - 2001
SP - 1261
EP - 1266
T2 - Phys. Stat. Sol. A
TI - Many-body effects on the electronic and optical properties of bulk GaP
VL - 188
ER -