The graphite Valence Band electronic structure: A combined Core-Valence-Valence Auger and Valence Band photoemission study

L. Calliari, G. Speranza, A. Santoni

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Abstract

The Valence Band (VB) electronic structure of graphite is investigated via two VB probes, namely Core-Valence-Valence (CVV) Auger emission and VB photoemission, both induced by X-Ray (hν=1486.6 eV) irradiation. The associated spectral structure is resolved by taking either the spectrum second derivative or the spectrum difference with respect to a smooth curve. Comparison between the two derived curves shows that both probes reproduce the VB Density Of States (DOS) in the upper VB region, while many body effects (Coulomb interaction between two final state holes of s-character) distort the CVV spectrum in the lower VB region. © 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)125 - 130
Number of pages6
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume127
Issue number1-2
DOIs
Publication statusPublished - Nov 2002
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

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