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Title
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Do you believe that atoms stay in place when you observe them in HREM?
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Author
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Abstract
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| Recent advancements in aberration-corrected electron microscopy allow for an evaluation of unexpectedly large atom displacements beyond a resolution limit of similar to 0.5 angstrom, which are found to be dose-rate dependent in high resolution images. In this paper we outline a consistent description of the electron scattering process, which explains these unexpected phenomena. Our approach links thermal diffuse scattering to electron beam-induced object excitation and relaxation processes, which strongly contribute to the image formation process. The effect can provide an explanation for the well-known contrast mismatch ("Stobbs factor") between image calculations and experiments. (C) 2014 Elsevier Ltd. All rights reserved. |
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Language
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English
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Source (journal)
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Micron. - Oxford, 1993, currens
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Publication
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Oxford
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Pergamon
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2015
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ISSN
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0968-4328
[print]
1878-4291
[online]
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DOI
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10.1016/J.MICRON.2014.09.003
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Volume/pages
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68
(2015)
, p. 158-163
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ISI
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000348016500023
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Pubmed ID
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25311646
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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