TheM4,5VVAuger spectra of silver surfaces: An analysis based on the self-convolution of measured photoelectron spectra

Abstract

Our measured $M_{4,5}\mathrm{VV}$ Auger spectra of silver and oxidized silver can be accurately described as the self-convolution of the valence-band densities of states, as approximated by measured ultraviolet photoemission spectra. While a single final-state relaxation energy shift adequately accounts for many-electron effects, inclusion of different relaxation energies for each of the three possible configurations of holes in the $t_{2g}$ or $e_g$-like final states of clean silver improves the agreement.