Electronic and magnetic properties of thin films probed by Auger photoelectron coincidence spectroscopy (APECS)

Due to the very high statistics achieved in the measurement, some finer details can be resolved at energies corresponding to transitions involving electrons from the top and the bottom of the valence band, when comparing singlet versus triplet contributions. As a first attempt and in the simplest approach, the observed dichroism can be explained by appropriate convolutions of the majority and minority densities of states, possibly corrected by a Cini-Sawatzky model for taking into account spin dependent correlation effects.