  A VO2 single-crystal has been subject of a combined investigation by high
resolution XPS, x-ray emission spectroscopy with electron and energy-selective
x-ray excitation (V L-alpha, V K-beta-5- and O K-alpha emission) and x-ray
absorption spectroscopy (O1s). We performed first principles tight-binding LMTO
band structure calculations of VO2 in both monoclinic and tetragonal rutile
structures and compare the densities of states with the experimental data. From
this we conclude that the electronic structure of VO2 is more bandlike than
correlated.
