Electron impact secondary electron emissions from elemental and compound solids

A. K.Fazlul Haque*, M. M. Haque, M. Atiqur R. Patoary, M. Alfaz Uddin, M. Ismail Hossain, M. Selim Mahbub, Arun K. Basak, M. Maaza, Bidhan C. Saha

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The Sternglass theory [Sternglass, Phys. Rev. 108, (1957) 1] for fast-ion-induced secondary-electron emission, which is proportional to the stopping powers, from metals has been modified to calculate the electron impact secondary electron yield from both elemental and compound targets with atomic number Z = 4–92 for incident energy range 5 ≤Ei≤105eV. This modification includes the use of a realistic stopping power expression that involves calculations of the effective atomic electron number, effective mean excitation energies and realistic electron density distribution of the target atoms along with the effective charge of incident electron. Throughout the studied energy range, the predictions of our proposed theory are in reasonable agreement with the experimental data for Be to U elemental and six important compound targets.

Original languageEnglish
Pages (from-to)192-209
Number of pages18
JournalVacuum
Volume141
DOIs
StatePublished - 1 Jul 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Effective atomic electron number
  • Effective mean excitation energies
  • Realistic electron density distributions
  • Secondary electron yield

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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