Inner Core Photoelectron and Photoabsorption Spectra in Metals with Incomplete Shell

Abstract

A model calculation of inner core photoelectron and photoabsorption spectra in transition metals is made by extending our previous theory such that incomplete shell states ( d -state) construct a narrow energy band due to the transfer interaction among them and the hybridization with a conduction band. When a core electron is excited, the d -level of the excited atom is assumed to be lowered due to the core hole left behind. On account of this final state interaction, the photoelectron spectrum has a singular peak tailing off on the high energy side and a satellite, relative intensity of which depends sensitively on the banding effect of d -states. The density of states of the d -band is reflected in the photoabsorption spectrum, but due to the final state interaction it is highly deformed and remains only as a weak structure on the tail of a singular peak appearing at the threshold.