Properties of Dipole-Mode Vibrational Energy Losses Recorded from a TEM Specimen

Ray F. Egerton, Kartik Venkatraman, Katia March, Peter A. Crozier

Research output: Contribution to journalArticlepeer-review

Abstract

The authors discuss the dipole vibrational modes that predominate in the energy-loss spectra of ionic materials below 1 eV, concentrating on thin-film specimens of typical transmission electron microscopy (TEM) thickness. The thickness dependence of the intensity is shown to be a useful guide to the bulk or surface character of vibrational peaks. The lateral and depth resolution of the energy-loss signal is investigated with the aid of finite-element calculations.

Original languageEnglish (US)
Pages (from-to)1117-1123
Number of pages7
JournalMicroscopy and Microanalysis
Volume26
Issue number6
DOIs
StatePublished - Dec 2020

Keywords

  • AEM
  • EELS
  • TEM
  • radiation damage

ASJC Scopus subject areas

  • Instrumentation

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