Huang, X;
Yang, W;
Harder, R;
Sun, Y;
Lu, M;
Chu, YS;
Robinson, IK;
(2015)
Deformation Twinning of a Silver Nanocrystal under High Pressure.
Nano Letters
, 15
(11)
pp. 7644-7649.
10.1021/acs.nanolett.5b03568.
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Abstract
Within a high-pressure environment, crystal deformation is controlled by complex processes such as dislocation motion, twinning, and phase transitions, which change materials' microscopic morphology and alter their properties. Understanding a crystal's response to external stress provides a unique opportunity for rational tailoring of its functionalities. It is very challenging to track the strain evolution and physical deformation from a single nanoscale crystal under high-pressure stress. Here, we report an in situ three-dimensional mapping of morphology and strain evolutions in a single-crystal silver nanocube within a high-pressure environment using the Bragg Coherent Diffractive Imaging (CDI) method. We observed a continuous lattice distortion, followed by a deformation twining process at a constant pressure. The ability to visualize stress-introduced deformation of nanocrystals with high spatial resolution and prominent strain sensitivity provides an important route for interpreting and engineering novel properties of nanomaterials.
| Type: | Article |
|---|---|
| Title: | Deformation Twinning of a Silver Nanocrystal under High Pressure |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.nanolett.5b03568 |
| Publisher version: | http://dx.doi.org/10.1021/acs.nanolett.5b03568 |
| Language: | English |
| Additional information: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see: http://dx.doi.org/10.1021/acs.nanolett.5b03568. |
| Keywords: | Nanocrystal, X-ray imaging, coherent diffractive imaging, deformation twinning |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1487098 |
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