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Deformation of a bismuth ferrite nanocrystal imaged by coherent X-ray diffraction

Deformation of a bismuth ferrite nanocrystal imaged by coherent X-ray diffraction
Deformation of a bismuth ferrite nanocrystal imaged by coherent X-ray diffraction
Abstract. Perovskite materials that contain transition metal-oxides often exhibit multifunctional properties with considerable utility in a device setting. BiFeO3 is a multiferroic perovskite material that exhibits room temperature anti-ferromagnetic and ferroelectric ordering. Optical excitation of BiFeO3 crystals results in an elastic structural deformation of the lattice with a fast response on the pico-second time scale. Here we report on dynamic optical excitation coupled with Bragg coherent X-ray diffraction measurements to investigate the structural properties of BiFeO3 nanoscale crystals. A continuous distortion of the diffraction speckle pattern was ob- served with increasing illumination. This was attributed to strain resulting from photo-induced lattice deformation.
Newton, Marcus
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Pietraszewski, Adam
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Kenny, Anthony
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Wagner, Ulrich
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Rau, Christoph
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Newton, Marcus
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Pietraszewski, Adam
102aa6e5-3946-4c98-a510-1dfddf61b68d
Kenny, Anthony
1e0bc766-3d82-42e0-9236-68cc730593c9
Wagner, Ulrich
53e49923-f204-424f-8e1a-b3a8b1549e30
Rau, Christoph
da5d605e-4232-4b59-99c5-59ed77546891

Newton, Marcus, Pietraszewski, Adam, Kenny, Anthony, Wagner, Ulrich and Rau, Christoph (2017) Deformation of a bismuth ferrite nanocrystal imaged by coherent X-ray diffraction. Journal of Physics: Conference Series, 849, [012029]. (doi:10.1088/1742-6596/849/1/012029).

Record type: Article

Abstract

Abstract. Perovskite materials that contain transition metal-oxides often exhibit multifunctional properties with considerable utility in a device setting. BiFeO3 is a multiferroic perovskite material that exhibits room temperature anti-ferromagnetic and ferroelectric ordering. Optical excitation of BiFeO3 crystals results in an elastic structural deformation of the lattice with a fast response on the pico-second time scale. Here we report on dynamic optical excitation coupled with Bragg coherent X-ray diffraction measurements to investigate the structural properties of BiFeO3 nanoscale crystals. A continuous distortion of the diffraction speckle pattern was ob- served with increasing illumination. This was attributed to strain resulting from photo-induced lattice deformation.

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NewtonJPConf1 - Accepted Manuscript
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Accepted/In Press date: 13 February 2017
e-pub ahead of print date: 14 June 2017
Published date: 14 June 2017
Venue - Dates: 13th International X-ray Microscopy Conference, XRM 2016, , Oxford, United Kingdom, 2016-08-14 - 2016-08-18
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 410727
URI: http://eprints.soton.ac.uk/id/eprint/410727
PURE UUID: edd70877-af2d-4f86-8d66-054e800f755c
ORCID for Marcus Newton: ORCID iD orcid.org/0000-0002-4062-2117

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Date deposited: 29 May 2018 16:31
Last modified: 22 Nov 2021 05:26

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Contributors

Author: Marcus Newton ORCID iD
Author: Adam Pietraszewski
Author: Anthony Kenny
Author: Ulrich Wagner
Author: Christoph Rau

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