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Atomic resolution HOLZ-STEM imaging of atom position modulation in oxide heterostructures

Abstract:

It is shown that higher order Laue zone (HOLZ) rings in high energy electron diffraction are specific to individual columns of atoms, and show different strengths, structure and radii for different atom columns along the same projection in a structure. An atomic resolution 4-dimensional STEM dataset is recorded from a <110> direction in a perovskite trilayer, where only the central LaFeO3 layer should show a period doubling that gives rise to an extra HOLZ ring. Careful comparison between exp...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Publisher:
Elsevier
Journal:
Ultramicroscopy More from this journal
Volume:
226
Article number:
113296
Publication date:
2021-05-01
Acceptance date:
2021-04-24
DOI:
EISSN:
1879-2723
ISSN:
0304-3991
Pmid:
34004555
Language:
English
Keywords:
Pubs id:
1180470
Local pid:
pubs:1180470
Deposit date:
2021-06-15

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