A joint experimental and theoretical investigation of the PL2,3VV Auger transition on GaP(110) is presented. The theoretical data, calculated within a pure band-like picture, are compared to the experimental spectra. The angular momentum character of the five features constituting the lineshape is identified. Strong contributions to the experimental data from many-body effects may be ruled out due to the good overall agreement with the theoretical lineshape therefore supporting a single particle description for this Auger feature. We discuss effects such as Coulomb correlation, initial state core hole screening, self-energy corrections, that may possibly contribute to the relative energy shifts observed in one of the pp components of the compared spectra.
EXPERIMENTAL AND THEORETICAL-STUDY OF THE PL2,3VV AUGER LINESHAPE OF GAP(110) / R., Cosso; L., Duo; M., Sancrotti; D'Addato, Sergio; A., Ruocco; Nannarone, Stefano; P., Weightman. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 251:(1991), pp. 267-271. [10.1016/0039-6028(91)90995-5]
EXPERIMENTAL AND THEORETICAL-STUDY OF THE PL2,3VV AUGER LINESHAPE OF GAP(110)
D'ADDATO, Sergio;NANNARONE, Stefano;
1991
Abstract
A joint experimental and theoretical investigation of the PL2,3VV Auger transition on GaP(110) is presented. The theoretical data, calculated within a pure band-like picture, are compared to the experimental spectra. The angular momentum character of the five features constituting the lineshape is identified. Strong contributions to the experimental data from many-body effects may be ruled out due to the good overall agreement with the theoretical lineshape therefore supporting a single particle description for this Auger feature. We discuss effects such as Coulomb correlation, initial state core hole screening, self-energy corrections, that may possibly contribute to the relative energy shifts observed in one of the pp components of the compared spectra.
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