The inelastic mean free path of electrons. Research in Budapest, Warsaw, Wrocław and Clermont-Ferrand. Brief history and new results

G. Gergely, S. Gurban, M. Menyhárd, A. Jablonski, L. Zommer

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The inelastic mean free path of electrons (IMFP) is an important material parameter for description of electron transport processes in solids. This parameter is particularly useful for quantifying the electron spectroscopies, in particular Auger electron spectroscopy, X-ray photoelectron spectroscopy, electron energy loss spectroscopy and elastic peak electron spectroscopy. In this work, a brief overview of the IMFP determination is presented. Generally, there are two groups of methods to determine the IMFP: (i) calculations using the theoretical model based on the experimental optical data, and (ii) calculations using theory relating the IMFP and the measured probability elastic electron backscattering from solids. Major advances in the development of the second group of methods were made in three laboratories; these advances are reviewed here. The elastic backscattering probability, in absolute or relative units, can be conveniently evaluated from the elastic peak intensity. However, much effort is needed to develop the theory for calculating the IMFP, which typically involves the Monte Carlo simulations of electron trajectories in solids. Presently, this theory and typical procedures of the spectra processing are implemented in the software package EPESWIN developed by Jablonski. In recent years, much attention is devoted to the phenomenon of the electron energy losses in the surface region of solids. Reliability of the theory of elastic backscattering is distinctly improved if this effect is taken into account.

Original languageEnglish
JournalActa Physica Polonica A
Volume114
Issue numberSUPPL.
Publication statusPublished - 2008

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mean free path
histories
electrons
electron spectroscopy
backscattering
energy dissipation
electron energy
electron trajectories
Auger spectroscopy
photoelectron spectroscopy
computer programs
spectroscopy
x rays
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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The inelastic mean free path of electrons. Research in Budapest, Warsaw, Wrocław and Clermont-Ferrand. Brief history and new results. / Gergely, G.; Gurban, S.; Menyhárd, M.; Jablonski, A.; Zommer, L.

In: Acta Physica Polonica A, Vol. 114, No. SUPPL., 2008.

Research output: Contribution to journalArticle

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