Experimental determination of the core-excited electron density of states

Abstract

We present an implementation of a method to determine different components of the local density of states in the presence of a core hole from inelastic x-ray scattering experiments.The only theoretical input needed beyond experimental data are the embedded atom transition matrix elements.In this work these matrix elements are calculated using a real-space multiple scattering approach.We apply the method to x-ray Raman scattering data for the boron K-edge in MgB 2 .The capability of the approach is demonstrated by separating the density of -, -and s-type states at the boron site in MgB 2 .