X-ray photoelectron spectroscopy and calculation of the electronic structure in iron based alloys under phase transformation

Abstract An experimental method which allows us to survey alterations in the X-ray photoelectron spectra under - to - transition is suggested. The densities of states of valence electrons calculated in the multi-band coherent potential approximation (CPA) reflect general features of XPS measurements. Our calculations have allowed us to determine contributions from electrons which occupy e g - and t 2g - orbitals, oriented along different directions in crystal lattice to the cohesive energy.