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How Quantitative are Measurements in the Stem?

Published online by Cambridge University Press:  02 July 2020

John Silcox*
Affiliation:
School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14850
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Abstract

The typical electron micrograph is often rich in detail, sometimes too rich, and it can overwhelm the casual observer. The obvious interpretation may be quickly drawn and the next sample brought under study. Yet the electron interaction with the sample is rarely fully exploited. This may be the reason that electron microscopy may sometimes be dismissed as “just pretty pictures”. While in practice “pretty pictures” are not that easy to record or find, it is still true that the interaction of electrons with the sample is complex and therefore able to give the observer much more understanding than is normally found, provided only that the observer is able to unravel the observations. It is the rapid change in this situation that has been fascinating to watch unfurl during the past decades.

In the Scanning Transmission Electron Microscope (STEM) electrons are focused into a tiny spot that is scanned over a thin film specimen.

Type
Quantitative STEM: Imaging and EELS Analysis Honoring the Contributions of John Silcox (Organized by P. Batson, C. Chen and D. Muller)
Copyright
Copyright © Microscopy Society of America 2001

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