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

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...

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Bibliographic Details
Published inMicroscopy and microanalysis Vol. 26; no. 6; pp. 1117 - 1123
Main Authors Egerton, Ray F., Venkatraman, Kartik, March, Katia, Crozier, Peter A.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.12.2020
Oxford University Press
Subjects
Dipoles
Energy
Mathematical models
Software and Instrumentation
Spectrum analysis
Thickness
Thin films
Transmission electron microscopy
AEM
radiation damage
TEM
EELS
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Summary: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.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:1431-9276
1435-8115
DOI:10.1017/S1431927620024423