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Letter. Three-dimensional imaging of strain in a single ZnO nanorod

Letter. Three-dimensional imaging of strain in a single ZnO nanorod
Letter. Three-dimensional imaging of strain in a single ZnO nanorod
Nanoscale structures can be highly strained because of confinement effects and the strong influence of their external boundaries. This results in dramatically different electronic, magnetic and optical material properties of considerable utility. Third-generation synchrotron-based coherent X-ray diffraction has emerged as a non-destructive tool for three-dimensional (3D) imaging of strain and defects in crystals that are smaller than the coherence volume, typically a few cubic micrometres, of the available beams that have sufficient flux to reveal the material's structure(1). Until now, measurements have been possible only at a single Bragg point of a given crystal because of the limited ability to maintain alignment(2); it has therefore been possible to determine only one component of displacement and not the full strain tensor. Here we report key advances in our fabrication and experimental techniques, which have enabled diffraction patterns to be obtained from six Bragg reflections of the same ZnO nanocrystal for the first time. All three Cartesian components of the ion displacement field, and in turn the full nine-component strain tensor, have thereby been imaged in three dimensions.
1476-1122
120-124
Newton, Marcus C.
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Leake, Steven J.
4a7e3727-00b4-46dc-934a-00ccdcecb17a
Harder, Ross
05fa0b22-abf6-4f59-9823-1748e879e27c
Robinson, Ian K.
ce840296-d065-463a-9986-573de845a081
Newton, Marcus C.
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Leake, Steven J.
4a7e3727-00b4-46dc-934a-00ccdcecb17a
Harder, Ross
05fa0b22-abf6-4f59-9823-1748e879e27c
Robinson, Ian K.
ce840296-d065-463a-9986-573de845a081

Newton, Marcus C., Leake, Steven J., Harder, Ross and Robinson, Ian K. (2010) Letter. Three-dimensional imaging of strain in a single ZnO nanorod. Nature Materials, 9 (2), 120-124. (doi:10.1038/nmat2607). (PMID:20023632)

Record type: Article

Abstract

Nanoscale structures can be highly strained because of confinement effects and the strong influence of their external boundaries. This results in dramatically different electronic, magnetic and optical material properties of considerable utility. Third-generation synchrotron-based coherent X-ray diffraction has emerged as a non-destructive tool for three-dimensional (3D) imaging of strain and defects in crystals that are smaller than the coherence volume, typically a few cubic micrometres, of the available beams that have sufficient flux to reveal the material's structure(1). Until now, measurements have been possible only at a single Bragg point of a given crystal because of the limited ability to maintain alignment(2); it has therefore been possible to determine only one component of displacement and not the full strain tensor. Here we report key advances in our fabrication and experimental techniques, which have enabled diffraction patterns to be obtained from six Bragg reflections of the same ZnO nanocrystal for the first time. All three Cartesian components of the ion displacement field, and in turn the full nine-component strain tensor, have thereby been imaged in three dimensions.

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More information

e-pub ahead of print date: 20 December 2009
Published date: February 2010
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 358552
URI: http://eprints.soton.ac.uk/id/eprint/358552
ISSN: 1476-1122
PURE UUID: 6bf66d47-5e74-4ced-96ae-fa85367a31f3
ORCID for Marcus C. Newton: ORCID iD orcid.org/0000-0002-4062-2117

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Date deposited: 09 Oct 2013 15:18
Last modified: 15 Mar 2024 03:48

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Contributors

Author: Steven J. Leake
Author: Ross Harder
Author: Ian K. Robinson

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