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Coherent diffraction imaging of a progressively deformed nanocrystal

Coherent diffraction imaging of a progressively deformed nanocrystal
Coherent diffraction imaging of a progressively deformed nanocrystal
Imaging ordered materials with coherent x rays holds great potential to improve our understanding of phenomena in complex materials systems where emergent behavior can arise due to coupling of spin, lattice, and orbital degrees of freedom. Coherent diffractive imaging (CDI) is a lensless imaging technique for probing the structure of materials in three dimensions. Central to the success of the CDI method is the inversion of propagated wave field information to recover a quantitative image of the illuminated crystalline structure. Present challenges faced with existing approaches to image recovery are often due to nonuniqueness of wave propagated forms of the electron density information that can cause prohibitive stagnation of the reconstruction algorithm. Here we report on a major advancement in image recovery that is able to recover the three-dimensional image of a 492 nm gold single crystal undergoing progressive deformation to a highly strained condition without the use of a priori information. Our findings also demonstrate the significance of robust image recovery techniques for revealing high resolution topological structure.
2475-9953
Newton, Marcus C.
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Shi, Xiaowen
09ecabcd-14f1-4357-a55d-bf4f07d15b5d
Wagner, Ulrich
53e49923-f204-424f-8e1a-b3a8b1549e30
Rau, Christoph
f29342b8-92a1-4855-a20c-3960de6e6053
Newton, Marcus C.
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Shi, Xiaowen
09ecabcd-14f1-4357-a55d-bf4f07d15b5d
Wagner, Ulrich
53e49923-f204-424f-8e1a-b3a8b1549e30
Rau, Christoph
f29342b8-92a1-4855-a20c-3960de6e6053

Newton, Marcus C., Shi, Xiaowen, Wagner, Ulrich and Rau, Christoph (2019) Coherent diffraction imaging of a progressively deformed nanocrystal. Physical Review Materials, 3 (4). (doi:10.1103/PhysRevMaterials.3.043803).

Record type: Article

Abstract

Imaging ordered materials with coherent x rays holds great potential to improve our understanding of phenomena in complex materials systems where emergent behavior can arise due to coupling of spin, lattice, and orbital degrees of freedom. Coherent diffractive imaging (CDI) is a lensless imaging technique for probing the structure of materials in three dimensions. Central to the success of the CDI method is the inversion of propagated wave field information to recover a quantitative image of the illuminated crystalline structure. Present challenges faced with existing approaches to image recovery are often due to nonuniqueness of wave propagated forms of the electron density information that can cause prohibitive stagnation of the reconstruction algorithm. Here we report on a major advancement in image recovery that is able to recover the three-dimensional image of a 492 nm gold single crystal undergoing progressive deformation to a highly strained condition without the use of a priori information. Our findings also demonstrate the significance of robust image recovery techniques for revealing high resolution topological structure.

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More information

Accepted/In Press date: 12 April 2019
e-pub ahead of print date: 30 April 2019
Published date: 30 April 2019

Identifiers

Local EPrints ID: 431492
URI: http://eprints.soton.ac.uk/id/eprint/431492
ISSN: 2475-9953
PURE UUID: e5c16b23-573b-49b0-984d-12f784857161
ORCID for Marcus C. Newton: ORCID iD orcid.org/0000-0002-4062-2117

Catalogue record

Date deposited: 05 Jun 2019 16:30
Last modified: 26 Nov 2021 03:01

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Contributors

Author: Xiaowen Shi
Author: Ulrich Wagner
Author: Christoph Rau

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