Electrostatic Electron Energy Analyzer Research Articles

Soft X-Ray Emission and X-Ray Photoelectron Spectra of Titanium Oxides

The spectra of the Ti L 2,3 emission, Ti M 2,3 emission, Ti L 2,3 photoelectron yield, and X-ray photoemission have been measured on titanium oxides, TiO 0.3 , TiO 0.84 , TiO 0.9 , TiO 1.1 and TiO 1.22 , by the use of a grazing incidence spectrometer and an electrostatic electron energy analyzer of hemisphere type. Results are compared with the calculated density of states proposed till now with emphasis on the effect of the oxygen concentration on the electronic structure. It is shown that the major part of the 3 d state in titanium oxides locates at about 5 eV above the Fermi level and has the width of about 4 eV, and this state may extend below the Fermi level.