Final State Effects in XAS and XPS of Y2O3

This paper deals with the presence of a satellite structure in the Y K absorption threshold and in the Y 3p photoelectron spectrum of Y2O3. Although a tight-binding calculation reveals two structures in the p empty density of states, the intensity ratio between main and satellite peak in XAS is not well reproduced. Moreover, the presence of a satellite structure in XPS suggests multielectronic effects. The presence of these satellites is then discussed in the frame of final state effects.