Evaluation of plasmon-loss spectra of molybdenum using elastic-peak electron spectroscopy

G. Gergely, M. Menyhárd, C. Jardin, P. Michel

Research output: Article

11 Citations (Scopus)

Abstract

Plasmon-loss spectra of clean polycrystalline molybdenum surfaces have been determined in the primary energy range Ep = 50-3000 eV. Spectra a distributions (nonderivative mode). A simplified model is described for evaluating plasmon-loss spectra using elastic-peak electron spectroscopy, as de of elastically reflected electrons is determined by integrating the N(E) spectrum of secondary and backscattered electrons. The ratio of the ar (23-24 eV) to that of the elastic peak is Pλ, the product of the probability for creating a volume plasmon loss and the inelastic mean free pat second plasmon-loss peak is (Pλ)2. Evaluation of our experimental plasmon-loss spectra gives Pλ = 0.4-0.5 for Ep > 500 eV. Th constitutes ∼50% of all losses determining the IMFP, interband loss processes being important in the remainder. For the low energy range, Ep found. For Ep <100 eV, no volume plasmon-loss peak could be detected in our N(E) spectra. The simplified model proves to be valid fo plasmon-loss peak (11-12 eV), i.e., such that Npls/Ne {reversed tilde equals} 10-2. Some results are presented concerning surface plasmon losses as molybdenum surface.

Original languageEnglish
Pages (from-to)279-288
Number of pages10
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume28
Issue number3
DOIs
Publication statusPublished - 1983

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Molybdenum
Electron spectroscopy
molybdenum
electron spectroscopy
evaluation
Electrons
electrons

ASJC Scopus subject areas

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

Cite this

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title = "Evaluation of plasmon-loss spectra of molybdenum using elastic-peak electron spectroscopy",
abstract = "Plasmon-loss spectra of clean polycrystalline molybdenum surfaces have been determined in the primary energy range Ep = 50-3000 eV. Spectra a distributions (nonderivative mode). A simplified model is described for evaluating plasmon-loss spectra using elastic-peak electron spectroscopy, as de of elastically reflected electrons is determined by integrating the N(E) spectrum of secondary and backscattered electrons. The ratio of the ar (23-24 eV) to that of the elastic peak is Pλ, the product of the probability for creating a volume plasmon loss and the inelastic mean free pat second plasmon-loss peak is (Pλ)2. Evaluation of our experimental plasmon-loss spectra gives Pλ = 0.4-0.5 for Ep > 500 eV. Th constitutes ∼50{\%} of all losses determining the IMFP, interband loss processes being important in the remainder. For the low energy range, Ep found. For Ep <100 eV, no volume plasmon-loss peak could be detected in our N(E) spectra. The simplified model proves to be valid fo plasmon-loss peak (11-12 eV), i.e., such that Npls/Ne {reversed tilde equals} 10-2. Some results are presented concerning surface plasmon losses as molybdenum surface.",
author = "G. Gergely and M. Menyh{\'a}rd and C. Jardin and P. Michel",
year = "1983",
doi = "10.1016/0368-2048(83)80006-1",
language = "English",
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pages = "279--288",
journal = "Journal of Electron Spectroscopy and Related Phenomena",
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T1 - Evaluation of plasmon-loss spectra of molybdenum using elastic-peak electron spectroscopy

AU - Gergely, G.

AU - Menyhárd, M.

AU - Jardin, C.

AU - Michel, P.

PY - 1983

Y1 - 1983

N2 - Plasmon-loss spectra of clean polycrystalline molybdenum surfaces have been determined in the primary energy range Ep = 50-3000 eV. Spectra a distributions (nonderivative mode). A simplified model is described for evaluating plasmon-loss spectra using elastic-peak electron spectroscopy, as de of elastically reflected electrons is determined by integrating the N(E) spectrum of secondary and backscattered electrons. The ratio of the ar (23-24 eV) to that of the elastic peak is Pλ, the product of the probability for creating a volume plasmon loss and the inelastic mean free pat second plasmon-loss peak is (Pλ)2. Evaluation of our experimental plasmon-loss spectra gives Pλ = 0.4-0.5 for Ep > 500 eV. Th constitutes ∼50% of all losses determining the IMFP, interband loss processes being important in the remainder. For the low energy range, Ep found. For Ep <100 eV, no volume plasmon-loss peak could be detected in our N(E) spectra. The simplified model proves to be valid fo plasmon-loss peak (11-12 eV), i.e., such that Npls/Ne {reversed tilde equals} 10-2. Some results are presented concerning surface plasmon losses as molybdenum surface.

AB - Plasmon-loss spectra of clean polycrystalline molybdenum surfaces have been determined in the primary energy range Ep = 50-3000 eV. Spectra a distributions (nonderivative mode). A simplified model is described for evaluating plasmon-loss spectra using elastic-peak electron spectroscopy, as de of elastically reflected electrons is determined by integrating the N(E) spectrum of secondary and backscattered electrons. The ratio of the ar (23-24 eV) to that of the elastic peak is Pλ, the product of the probability for creating a volume plasmon loss and the inelastic mean free pat second plasmon-loss peak is (Pλ)2. Evaluation of our experimental plasmon-loss spectra gives Pλ = 0.4-0.5 for Ep > 500 eV. Th constitutes ∼50% of all losses determining the IMFP, interband loss processes being important in the remainder. For the low energy range, Ep found. For Ep <100 eV, no volume plasmon-loss peak could be detected in our N(E) spectra. The simplified model proves to be valid fo plasmon-loss peak (11-12 eV), i.e., such that Npls/Ne {reversed tilde equals} 10-2. Some results are presented concerning surface plasmon losses as molybdenum surface.

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