Effective energy loss function of silver derived from reflection electron energy loss spectra

Z. M. Zhang, Z. J. Ding, H. M. Li, K. Tőkési, D. Varga, J. Tóth

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The electron inelastic scattering in silver is studied both experimentally and theoretically. The reflection electron energy loss spectroscopy (REELS) spectra were measured using the ESA-31. It is shown that the surface excitation is enhanced with decreasing primary energy. For the higher resolution spectra with the narrower energy distribution of elastically scattered electrons, the Tougaard's recursive formula describes inelastic scattering cross section from the measured energy loss spectrum as well as the extended Landau approach. At low primary energies, the differential inverse inelastic mean free path (DIIMFP) for low loss energies extracted by Tougaard's recursive method is smaller than that by the extended Landau approach. The latter method is better for measured REELS spectra with a large full width at half maximum (FWHM) of elastic peak (e.g. for a CMA). The effective energy loss function (EELF) has been derived from these experiments based on the extended Landau approach. The Monte Carlo simulated REELS spectra with the derived EELF agree well with the experimental spectra.

Original languageEnglish
Pages (from-to)632-635
Number of pages4
JournalSurface and Interface Analysis
Volume38
Issue number4
DOIs
Publication statusPublished - Apr 2006

Fingerprint

Electron reflection
Silver
Electron energy loss spectroscopy
Energy dissipation
energy dissipation
silver
electron energy
Inelastic scattering
Electron scattering
Full width at half maximum
inelastic scattering
spectroscopy
Electrons
European Space Agency
scattering cross sections
mean free path
energy distribution
electron scattering
Experiments
energy

Keywords

  • Energy loss function
  • Extended Landau approach
  • Inelastic scattering
  • Monte Carlo
  • REELS
  • Silver
  • Tougaard's recursive method

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Effective energy loss function of silver derived from reflection electron energy loss spectra. / Zhang, Z. M.; Ding, Z. J.; Li, H. M.; Tőkési, K.; Varga, D.; Tóth, J.

In: Surface and Interface Analysis, Vol. 38, No. 4, 04.2006, p. 632-635.

Research output: Contribution to journalArticle

Zhang, Z. M. ; Ding, Z. J. ; Li, H. M. ; Tőkési, K. ; Varga, D. ; Tóth, J. / Effective energy loss function of silver derived from reflection electron energy loss spectra. In: Surface and Interface Analysis. 2006 ; Vol. 38, No. 4. pp. 632-635.
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