Observation of the self-convolved spin-split valence band density of states in MVV Auger decay from Fe(100)

By spin-resolved photoemission with synchrotron radiation we have investigated the Auger electrons from Fe(100) above the 3 p-3d resonance. The observed majority- and minority-spin Auger electrons have the expected kinetic energy independent on photon energy and without noticeable reduction because of correlation effects. The spin-resolved Auger electron energy distributions resemble convolutions of theoretical density of states curves of appropriate spin direction.