Title
In-line three-dimensional holography of nanocrystalline objects at atomic resolution In-line three-dimensional holography of nanocrystalline objects at atomic resolution
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Engineering sciences. Technology
Source (journal)
Nature communications
Volume/pages
7(2016) , 11 p.
ISSN
2041-1723
2041-1723
Article Reference
10603
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Resolution and sensitivity of the latest generation aberration-corrected transmission electron microscopes allow the vast majority of single atoms to be imaged with sub-ngstrom resolution and their locations determined in an image plane with a precision that exceeds the 1.9-pm wavelength of 300 kV electrons. Such unprecedented performance allows expansion of electron microscopic investigations with atomic resolution into the third dimension. Here we report a general tomographic method to recover the three-dimensional shape of a crystalline particle from high-resolution images of a single projection without the need for sample rotation. The method is compatible with low dose rate electron microscopy, which improves on signal quality, while minimizing electron beam-induced structure modifications even for small particles or surfaces. We apply it to germanium, gold and magnesium oxide particles, and achieve a depth resolution of 1-2 A, which is smaller than inter-atomic distances.
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/b49e25/132357.pdf
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Handle