Evolution of energy bands from the Au 5d level in Cd-Au alloys

Abstract

Monochromatized XPS experiments show that the 5d level of Au diluted into Cd evolves from an atomic-like spin-orbit split doublet into energy bands as the number of nearest neighbour Au atoms increases. The rapid rise to higher energy of the antibonding-like portions of the 5d bands with increasing Au concentration is attributed to the nonorthogonality of the d orbitals on adjacent sites.