Journal
CHEMICAL PHYSICS LETTERS
Volume 443, Issue 1-3, Pages 61-65Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2007.06.013
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Photoemission spectra of thick films of beta-PO2 have been measured over a range of exciting photon energies between 40 eV and 150 eV. There is evidence for occupation of conduction band states above the top of the main valence band to give a degenerate electron gas and the spectra terminate in a sharp metallic Fermi edge. Structure associated with screening of shallow 5d core holes by the mobile conduction electrons observed in AlK alpha excited X-ray photoemission spectra is suppressed in the lower energy spectra and the Pb 5d core level appears as a simple spin-orbit doublet. (c) 2007 Elsevier B.V. All rights reserved.
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