Influence of solid-state effects on the K beta /K alpha intensity ratios of Ti and V in TiB₂, VB₂and VN

Abstract

The influence of solid-state effects on the K beta /K alpha intensity ratio of Ti and V has been found in proton induced X-ray emission (PIXE) and gamma-ray fluorescence ( gamma RF) studies of the compounds TiB2, VB2 and VN. The change in the K beta /K alpha ratio observed can be explained as being due to changes in the screening of 3p electrons by a varying 3d electron delocalization. The amounts of 3d electron delocalization obtained for the diborides differs considerably from the results of previous cohesive energy calculations and in the case of VN it is of the same order as given by the previous band structure calculations.