Ti 2p soft X-ray emission spectroscopy of Ti2O3

Abstract Ti 3d electronic structure of Ti 2 O 3 has been investigated by means of soft X-ray photoemission spectroscopy (SXES) in the Ti 2p–3d absorption region. In the SXES spectra, the Raman peaks due to the a 1 g – e g π and a 1 g – e g σ excitations are observed at 1.3 and 3.3 eV below the incident photon energy, respectively. The intensity of the a 1 g – e g σ peak in the SXES spectrum measured between the 2p 3/2 –3d and 2p 1/2 –3d absorption peaks depends on the polarization of the incident photon E ; the peak observed clearly in case of E parallel to the c -axis, almost disappears in case of E perpendicular to the c -axis.