Electronic structure of La0.65Pb0.35MnO3 perovskite studied by X-ray photoemission spectroscopy

The electronic structure of La0.65Pb0.35MnO3 has been studied by X-ray phot oemission spectroscopy (XPS). The valence band spectrum is compared with ab -initio electronic structure calculations using linearized muffin-tin orbit al (LMTO) method. The XPS measurements, and the theoretical band-structure calculations for La0.75Pb0.25MnO3, show that the electronic structure of La 0.65Pb0.35MnO3 compound consists mainly of Mn 3d and O 2p states. In additi on: the Mn 3d and O 2p states are hybridized over the whole valence band. S tates of 3d characters localized in Mn site predominate near the top of the valence band. We have found a good agreement between the experimental vale nce band spectra and theoretical calculations. (C) 2000 Elsevier Science B. V. All rights reserved.