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Article

Unusual Breathing Behavior of Optically Excited Barium Titanate Nanocrystals

1
London Centre for Nanotechnology, University College London, London WC1E 6BT, UK
2
Argonne National Laboratory, Argonne, Lemont, IL 60439, USA
3
Brookhaven National Laboratory, Upton, NY 11973, USA
4
Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
5
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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Key Laboratory of Advanced Civil Engineering Materials, Tongji University, Shanghai 201804, China
7
SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
8
ISIS Facility, Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxfordshire OX11 0QX, UK
*
Author to whom correspondence should be addressed.
Crystals 2020, 10(5), 365; https://doi.org/10.3390/cryst10050365
Received: 9 April 2020 / Revised: 21 April 2020 / Accepted: 29 April 2020 / Published: 1 May 2020
(This article belongs to the Special Issue Coherent X-ray Scattering)
Coherent X-ray diffraction patterns were recorded by using an X-ray free-electron laser to illuminate barium titanate nanocrystals as a function of time delay after laser excitation. Rather than seeing any significant thermal expansion effects, the diffraction peaks were found to move perpendicular to the momentum transfer direction. This suggests a laser driven rotation of the crystal lattice, which is delayed by the aggregated state of the crystals. Internal deformations associated with crystal contacts were also observed. View Full-Text
Keywords: X-ray pump-probe; coherent imaging; ferroelectric oxide X-ray pump-probe; coherent imaging; ferroelectric oxide
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MDPI and ACS Style

Diao, J.; Cherukara, M.; Harder, R.; Huang, X.; Zhang, F.; Chen, B.; Ulvestad, A.; Song, S.; Zhu, D.; Keen, D.; Robinson, I. Unusual Breathing Behavior of Optically Excited Barium Titanate Nanocrystals. Crystals 2020, 10, 365. https://doi.org/10.3390/cryst10050365

AMA Style

Diao J, Cherukara M, Harder R, Huang X, Zhang F, Chen B, Ulvestad A, Song S, Zhu D, Keen D, Robinson I. Unusual Breathing Behavior of Optically Excited Barium Titanate Nanocrystals. Crystals. 2020; 10(5):365. https://doi.org/10.3390/cryst10050365

Chicago/Turabian Style

Diao, Jiecheng, Mathew Cherukara, Ross Harder, Xiaojing Huang, Fucai Zhang, Bo Chen, Andrew Ulvestad, Sanghoon Song, Diling Zhu, David Keen, and Ian Robinson. 2020. "Unusual Breathing Behavior of Optically Excited Barium Titanate Nanocrystals" Crystals 10, no. 5: 365. https://doi.org/10.3390/cryst10050365

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