Nature of electronic states at the Fermi level of metallic β-Pb O2 revealed by hard x-ray photoemission spectroscopy

D. J. Payne, R. G. Egdell, G. Paolicelli, F. Offi, G. Panaccione, P. Lacovig, G. Monaco, G. Vanko, A. Walsh, G. W. Watson, J. Guo, G. Beamson, P. A. Glans, T. Learmonth, K. E. Smith

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Abstract

The nature of electronic states at the Fermi energy in metallic β-Pb O2 has been identified by hard x-ray photoemission spectroscopy (HXPS) combined with x-ray emission spectroscopy and density-functional theory calculations. Pb 6s states are strongly enhanced in HXP spectra, allowing us to locate the Fermi level above the top of the valence band. The occupied conduction-band states have significant Pb 6s character, although the major 6s contribution to the density of states is found 9 eV below the Fermi energy. The enormous potential of HXPS for the study of s states in oxides is emphasized.

Original languageEnglish
Article number153102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number15
DOIs
Publication statusPublished - 2007 Apr 17

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Payne, D. J., Egdell, R. G., Paolicelli, G., Offi, F., Panaccione, G., Lacovig, P., Monaco, G., Vanko, G., Walsh, A., Watson, G. W., Guo, J., Beamson, G., Glans, P. A., Learmonth, T., & Smith, K. E. (2007). Nature of electronic states at the Fermi level of metallic β-Pb O2 revealed by hard x-ray photoemission spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 75(15), [153102]. https://doi.org/10.1103/PhysRevB.75.153102