Thickness dependent valence fluctuation of CeN film

  • Wende Xiao
  • , Qinlin Guo*
  • , E. G. Wang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

CeN films with different thickness are synthesized on a Re(0001) substrate and studied by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy. A thickness dependent valence fluctuation is observed by XPS. Valence fluctuation only occurs with film thickness larger than a critical value of about 15nm. This interesting phenomenon is mainly attributed to the stress in CeN films due to the large lattice mismatch between the CeN film and the substrate, and a possible composition deviation at the interface.

Original languageEnglish
Pages (from-to)296-300
Number of pages5
JournalSurface Science
Volume572
Issue number2-3
DOIs
Publication statusPublished - 20 Nov 2004
Externally publishedYes

Keywords

  • Auger electron spectroscopy
  • Cerium
  • Nitrides
  • X-ray photoelectron spectroscopy

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