A study of core and valence levels in β-PbO2 by hard X-ray photoemission

D. J. Payne, G. Paolicelli, F. Offi, G. Panaccione, P. Lacovig, G. Beamson, A. Fondacaro, G. Monaco, G. Vankó, R. G. Egdell

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The core and valence levels of β-PbO2 have been studied using hard X-ray photoemission spectroscopy (hν = 6000 eV and 7700 eV). The Pb 4f core levels display an asymmetric lineshape which may be fitted with components associated with screened and unscreened final states. It is found that intrinsic final state screening is suppressed in the near-surface region. A shift in the O 1s binding energy due to recoil effects is observed under excitation at 7700 eV. It is shown that conduction band states have substantial 6s character and are selectively enhanced in hard X-ray photoemission spectra. However, the maximum amplitude in the Pb 6s partial density of states is found at the bottom of the valence band and the associated photoemission peak shows the most pronounced enhancement in intensity at high photon energy.

Original languageEnglish
Pages (from-to)26-34
Number of pages9
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume169
Issue number1
DOIs
Publication statusPublished - Jan 2009

Fingerprint

Photoemission
photoelectric emission
valence
X rays
Core levels
Photoelectron spectroscopy
Valence bands
X ray spectroscopy
Conduction bands
Binding energy
Screening
x rays
Photons
conduction bands
screening
binding energy
augmentation
shift
photons
spectroscopy

Keywords

  • Core-hole screening
  • Electronic structure
  • HXPS
  • Lead dioxide
  • Plasmon
  • Recoil

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Radiation

Cite this

Payne, D. J., Paolicelli, G., Offi, F., Panaccione, G., Lacovig, P., Beamson, G., ... Egdell, R. G. (2009). A study of core and valence levels in β-PbO2 by hard X-ray photoemission. Journal of Electron Spectroscopy and Related Phenomena, 169(1), 26-34. https://doi.org/10.1016/j.elspec.2008.10.002

A study of core and valence levels in β-PbO2 by hard X-ray photoemission. / Payne, D. J.; Paolicelli, G.; Offi, F.; Panaccione, G.; Lacovig, P.; Beamson, G.; Fondacaro, A.; Monaco, G.; Vankó, G.; Egdell, R. G.

In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 169, No. 1, 01.2009, p. 26-34.

Research output: Contribution to journalArticle

Payne, DJ, Paolicelli, G, Offi, F, Panaccione, G, Lacovig, P, Beamson, G, Fondacaro, A, Monaco, G, Vankó, G & Egdell, RG 2009, 'A study of core and valence levels in β-PbO2 by hard X-ray photoemission', Journal of Electron Spectroscopy and Related Phenomena, vol. 169, no. 1, pp. 26-34. https://doi.org/10.1016/j.elspec.2008.10.002
Payne, D. J. ; Paolicelli, G. ; Offi, F. ; Panaccione, G. ; Lacovig, P. ; Beamson, G. ; Fondacaro, A. ; Monaco, G. ; Vankó, G. ; Egdell, R. G. / A study of core and valence levels in β-PbO2 by hard X-ray photoemission. In: Journal of Electron Spectroscopy and Related Phenomena. 2009 ; Vol. 169, No. 1. pp. 26-34.
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AU - Lacovig, P.

AU - Beamson, G.

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