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Ganguly S, Pesquera D, Garcia DM, Saeed U, Mirzamohammadi N, Santiso J, Padilla J, Roque JMC, Laulhé C, Berenguer F, Villanueva LG, Catalan G. Photostrictive Actuators Based on Freestanding Ferroelectric Membranes. Adv Mater 2024:e2310198. [PMID: 38546029 DOI: 10.1002/adma.202310198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/12/2024] [Indexed: 04/26/2024]
Abstract
Complex oxides offer a wide range of functional properties, and recent advances in the fabrication of freestanding membranes of these oxides are adding new mechanical degrees of freedom to this already rich functional ecosystem. Here, photoactuation is demonstrated in freestanding thin film resonators of ferroelectric Barium Titanate (BaTiO3) and paraelectric Strontium Titanate (SrTiO3). The free-standing films, transferred onto perforated supports, act as nano-drums, oscillating at their natural resonance frequency when illuminated by a frequency-modulated laser. The light-induced deflections in the ferroelectric BaTiO3 membranes are two orders of magnitude larger than in the paraelectric SrTiO3 ones. Time-resolved X-ray micro-diffraction under illumination and temperature-dependent holographic interferometry provide combined evidence for the photostrictive strain in BaTiO3 originating from a partial screening of ferroelectric polarization by photo-excited carriers, which decreases the tetragonality of the unit cell. These findings showcase the potential of photostrictive freestanding ferroelectric films as wireless actuators operated by light.
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Affiliation(s)
- Saptam Ganguly
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - David Pesquera
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Daniel Moreno Garcia
- Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Umair Saeed
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Nona Mirzamohammadi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - José Santiso
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Jessica Padilla
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - José Manuel Caicedo Roque
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Claire Laulhé
- Université Paris-Saclay, Synchrotron SOLEIL, Saint-Aubin, 91190, France
| | - Felisa Berenguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP 48, Gif-sur-Yvette, 91190, France
| | - Luis Guillermo Villanueva
- Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Gustau Catalan
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
- ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona, 08010, Catalonia
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2
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Godard P, Verezhak M, Sadat T, Mignerot F, Jacques VLR, Le Bolloc'h D, Richter C, Berenguer F, Diaz A, Van Petegem S, Renault PO, Thilly L. In situ compression of micropillars under coherent X-ray diffraction: a case study of experimental and data-analysis constraints. J Appl Crystallogr 2023; 56:381-390. [PMID: 37032969 PMCID: PMC10077849 DOI: 10.1107/s1600576723000493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 01/18/2023] [Indexed: 03/03/2023] Open
Abstract
Micropillar compression is a method of choice to understand mechanics at small scale. It is mainly studied with electron microscopy or white-beam micro-Laue X-ray diffraction. The aim of the present article is to show the possibilities of the use of diffraction with a coherent X-ray beam. InSb micropillars in epitaxy with their pedestals (i.e. their support) are studied in situ during compression. Firstly, an experiment using a collimated beam matching the pillar size allows determination of when the sample enters the plastic regime, independently of small defects induced by experimental artefacts. A second experiment deals with scanning X-ray diffraction maps with a nano-focused beam; despite the coherence of the beam, the contributions from the pedestal and from the micropillar in the diffraction patterns can be separated, making possible a spatially resolved study of the plastic strain fields. A quantitative measurement of the elastic strain field is nevertheless hampered by the fact that the pillar diffracts at the same angles as the pedestal. Finally, no image reconstructions were possible in these experiments, either in situ due to a blurring of the fringes during loading or post-mortem because the defect density after yielding was too high. However, it is shown how to determine the elastic bending of the pillar in the elastic regime. Bending angles of around 0.3° are found, and a method to estimate the sample's radius of curvature is suggested.
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Li N, Dupraz M, Wu L, Leake SJ, Resta A, Carnis J, Labat S, Almog E, Rabkin E, Favre-Nicolin V, Picca FE, Berenguer F, van de Poll R, Hofmann JP, Vlad A, Thomas O, Garreau Y, Coati A, Richard MI. Continuous scanning for Bragg coherent X-ray imaging. Sci Rep 2020; 10:12760. [PMID: 32728084 PMCID: PMC7391662 DOI: 10.1038/s41598-020-69678-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/10/2020] [Indexed: 11/09/2022] Open
Abstract
We explore the use of continuous scanning during data acquisition for Bragg coherent diffraction imaging, i.e., where the sample is in continuous motion. The fidelity of continuous scanning Bragg coherent diffraction imaging is demonstrated on a single Pt nanoparticle in a flow reactor at \documentclass[12pt]{minimal}
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\begin{document}$$400\,^\circ \hbox {C}$$\end{document}400∘C in an Ar-based gas flowed at 50 ml/min. We show a reduction of 30% in total scan time compared to conventional step-by-step scanning. The reconstructed Bragg electron density, phase, displacement and strain fields are in excellent agreement with the results obtained from conventional step-by-step scanning. Continuous scanning will allow to minimise sample instability under the beam and will become increasingly important at diffraction-limited storage ring light sources.
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Affiliation(s)
- Ni Li
- CEA Grenoble, IRIG, MEM, NRS, Univ. Grenoble Alpes, 17 rue des Martyrs, 38000, Grenoble, France.,ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Maxime Dupraz
- CEA Grenoble, IRIG, MEM, NRS, Univ. Grenoble Alpes, 17 rue des Martyrs, 38000, Grenoble, France.,ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Longfei Wu
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France.,CNRS, Université de Toulon, IM2NP UMR 7334, Aix Marseille Université, 13397, Marseille, France
| | - Steven J Leake
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Andrea Resta
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192, Gif-sur-Yvette, France
| | - Jérôme Carnis
- CNRS, Université de Toulon, IM2NP UMR 7334, Aix Marseille Université, 13397, Marseille, France.,Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607, Hamburg, Germany
| | - Stéphane Labat
- CNRS, Université de Toulon, IM2NP UMR 7334, Aix Marseille Université, 13397, Marseille, France
| | - Ehud Almog
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Eugen Rabkin
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | | | | | - Felisa Berenguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192, Gif-sur-Yvette, France
| | - Rim van de Poll
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Jan P Hofmann
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Alina Vlad
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192, Gif-sur-Yvette, France
| | - Olivier Thomas
- CNRS, Université de Toulon, IM2NP UMR 7334, Aix Marseille Université, 13397, Marseille, France
| | - Yves Garreau
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192, Gif-sur-Yvette, France.,Laboratoire Matériaux et Phénomènes Quantiques, CNRS, UMR 7162, Université de Paris, 75013, Paris, France
| | - Alessandro Coati
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192, Gif-sur-Yvette, France
| | - Marie-Ingrid Richard
- CEA Grenoble, IRIG, MEM, NRS, Univ. Grenoble Alpes, 17 rue des Martyrs, 38000, Grenoble, France. .,ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France.
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Maldanis L, Hickman-Lewis K, Verezhak M, Gueriau P, Guizar-Sicairos M, Jaqueto P, Trindade RIF, Rossi AL, Berenguer F, Westall F, Bertrand L, Galante D. Nanoscale 3D quantitative imaging of 1.88 Ga Gunflint microfossils reveals novel insights into taphonomic and biogenic characters. Sci Rep 2020; 10:8163. [PMID: 32424216 PMCID: PMC7235231 DOI: 10.1038/s41598-020-65176-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 04/29/2020] [Indexed: 11/17/2022] Open
Abstract
Precambrian cellular remains frequently have simple morphologies, micrometric dimensions and are poorly preserved, imposing severe analytical and interpretational challenges, especially for irrefutable attestations of biogenicity. The 1.88 Ga Gunflint biota is a Precambrian microfossil assemblage with different types and qualities of preservation across its numerous geological localities and provides important insights into the Proterozoic biosphere and taphonomic processes. Here we use synchrotron-based ptychographic X-ray computed tomography to investigate well-preserved carbonaceous microfossils from the Schreiber Beach locality as well as poorly-preserved, iron-replaced fossil filaments from the Mink Mountain locality, Gunflint Formation. 3D nanoscale imaging with contrast based on electron density allowed us to assess the morphology and carbonaceous composition of different specimens and identify the minerals associated with their preservation based on retrieved mass densities. In the Mink Mountain filaments, the identification of mature kerogen and maghemite rather than the ubiquitously described hematite indicates an influence from biogenic organics on the local maturation of iron oxides through diagenesis. This non-destructive 3D approach to microfossil composition at the nanoscale within their geological context represents a powerful approach to assess the taphonomy and biogenicity of challenging or poorly preserved traces of early microbial life, and may be applied effectively to extraterrestrial samples returned from upcoming space missions.
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Affiliation(s)
- L Maldanis
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Av. Giuseppe Maximo Scolfaro, 10000, 13083-100, Campinas, Brazil. .,Institute of Physics of São Carlos, University of São Paulo, Av. Trabalhador são-carlense, 400, 13566-590, São Carlos, Brazil. .,ISterre, UGA, CNRS, Observatoire des Sciences de l'Univers, CS 40700, 38058, Grenoble, France.
| | - K Hickman-Lewis
- Centre de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071, Orléans, France.,Dipartimento di Scienze Biologiche, Geologiche e Ambientali (BiGeA), Università di Bologna, via Zamboni 67, I-40126, Bologna, Italy
| | - M Verezhak
- Paul Scherrer Institut, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - P Gueriau
- Université Paris-Saclay, CNRS, ministère de la culture, UVSQ, IPANEMA, 91192, Saint-Aubin, France.,Institute of Earth Sciences (ISTE), University of Lausanne, Lausanne, Switzerland
| | - M Guizar-Sicairos
- Paul Scherrer Institut, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - P Jaqueto
- Department of Geophysics, Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Rua do Matão, 1226, 05508-090, São Paulo, Brazil
| | - R I F Trindade
- Department of Geophysics, Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Rua do Matão, 1226, 05508-090, São Paulo, Brazil
| | - A L Rossi
- Brazilian Center for Research in Physics (CBPF), R. Dr. Xavier Sigaud, 150, 22290-180, Rio de Janeiro, Brazil
| | - F Berenguer
- Synchrotron Soleil, Saint-Aubin, L'Orme des Merisiers, BP 48 Saint-Aubin, 91192, Gif-sur-Yvette, France
| | - F Westall
- Centre de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071, Orléans, France
| | - L Bertrand
- Université Paris-Saclay, CNRS, ministère de la culture, UVSQ, IPANEMA, 91192, Saint-Aubin, France.,Université Paris-Saclay, 91190, Saint-Aubin, France
| | - D Galante
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Av. Giuseppe Maximo Scolfaro, 10000, 13083-100, Campinas, Brazil
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5
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Suzana AF, Rochet A, Passos AR, Castro Zerba JP, Polo CC, Santilli CV, Pulcinelli SH, Berenguer F, Harder R, Maxey E, Meneau F. In situ three-dimensional imaging of strain in gold nanocrystals during catalytic oxidation. Nanoscale Adv 2019; 1:3009-3014. [PMID: 36133615 PMCID: PMC9417304 DOI: 10.1039/c9na00231f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/14/2019] [Indexed: 05/19/2023]
Abstract
The chemical properties of materials are dependent on dynamic changes in their three-dimensional (3D) structure as well as on the reactive environment. We report an in situ 3D imaging study of defect dynamics of a single gold nanocrystal. Our findings offer an insight into its dynamic nanostructure and unravel the formation of a nanotwin network under CO oxidation conditions. In situ/operando defect dynamics imaging paves the way to elucidate chemical processes at the single nano-object level towards defect-engineered nanomaterials.
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Affiliation(s)
- Ana Flavia Suzana
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
- Instituto de Química, UNESP Rua Professor Francisco Degni 14800-900 Araraquara SP Brazil
| | - Amélie Rochet
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
| | - Aline Ribeiro Passos
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
| | - João Paulo Castro Zerba
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
| | - Carla Cristina Polo
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
| | | | | | - Felisa Berenguer
- Synchrotron SOLEIL L'Orme des Merisiers, BP48 Saint Aubin 91192 Gif-sur-Yvette France
| | - Ross Harder
- Advanced Photon Source, Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
| | - Evan Maxey
- Advanced Photon Source, Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
| | - Florian Meneau
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM) 13083-970 Campinas SP Brazil
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Ravy S, Laulhé C, Ciavardini A, Jarnac A, Legrand F, Elkaim E, Berenguer F, Fertey P. Sub-na and sub-ps time-resolved diffraction at CRISTAL beamline – SOLEIL synchrotron. Acta Crystallogr A Found Adv 2018. [DOI: 10.1107/s2053273318089180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Robin N, Béthoux O, Sidorchuk E, Cui Y, Li Y, Germain D, King A, Berenguer F, Ren D. A Carboniferous Mite on an Insect Reveals the Antiquity of an Inconspicuous Interaction. Curr Biol 2016; 26:1376-82. [DOI: 10.1016/j.cub.2016.03.068] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/21/2016] [Accepted: 03/30/2016] [Indexed: 11/25/2022]
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Berenguer F, Bean RJ, Bozec L, Vila-Comamala J, Zhang F, Kewish CM, Bunk O, Rodenburg JM, Robinson IK. Coherent x-ray imaging of collagen fibril distributions within intact tendons. Biophys J 2014; 106:459-66. [PMID: 24461021 DOI: 10.1016/j.bpj.2013.12.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 11/18/2022] Open
Abstract
The characterization of the structure of highly hierarchical biosamples such as collagen-based tissues at the scale of tens of nanometers is essential to correlate the tissue structure with its growth processes. Coherent x-ray Bragg ptychography is an innovative imaging technique that gives high resolution images of the ordered parts of such samples. Herein, we report how we used this method to image the collagen fibrillar ultrastructure of intact rat tail tendons. The images show ordered fibrils extending over 10-20 μm in length, with a quantifiable D-banding spacing variation of 0.2%. Occasional defects in the fibrils distribution have also been observed, likely indicating fibrillar fusion events.
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Affiliation(s)
- Felisa Berenguer
- London Centre for Nanotechnology, University College London, London, United Kingdom.
| | - Richard J Bean
- London Centre for Nanotechnology, University College London, London, United Kingdom
| | - Laurent Bozec
- London Centre for Nanotechnology, University College London, London, United Kingdom; Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, United Kingdom
| | | | - Fucai Zhang
- Department of Electronic and Electric Engineering, University of Sheffield, Sheffield, United Kingdom
| | | | - Oliver Bunk
- Paul Scherrer Institut, Villigen, Switzerland
| | - John M Rodenburg
- Department of Electronic and Electric Engineering, University of Sheffield, Sheffield, United Kingdom; Research Complex at Harwell, Harwell Oxford Campus, Didcot, United Kingdom
| | - Ian K Robinson
- London Centre for Nanotechnology, University College London, London, United Kingdom; Research Complex at Harwell, Harwell Oxford Campus, Didcot, United Kingdom
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Zhang F, Peterson I, Vila-Comamala J, Diaz A, Berenguer F, Bean R, Chen B, Menzel A, Robinson IK, Rodenburg JM. Translation position determination in ptychographic coherent diffraction imaging. Opt Express 2013; 21:13592-606. [PMID: 23736612 DOI: 10.1364/oe.21.013592] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Accurate knowledge of translation positions is essential in ptychography to achieve a good image quality and the diffraction limited resolution. We propose a method to retrieve and correct position errors during the image reconstruction iterations. Sub-pixel position accuracy after refinement is shown to be achievable within several tens of iterations. Simulation and experimental results for both optical and X-ray wavelengths are given. The method improves both the quality of the retrieved object image and relaxes the position accuracy requirement while acquiring the diffraction patterns.
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Affiliation(s)
- Fucai Zhang
- London Centre for Nanotechnology, UCL, London, UK.
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10
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Aranda MAG, Berenguer F, Bean RJ, Shi X, Xiong G, Collins SP, Nave C, Robinson IK. Coherent X-ray diffraction investigation of twinned microcrystals. J Synchrotron Radiat 2010; 17:751-60. [PMID: 20975220 DOI: 10.1107/s0909049510039774] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 10/05/2010] [Indexed: 05/22/2023]
Abstract
Coherent X-ray diffraction has been used to study pseudo-merohedrally twinned manganite microcrystals. The analyzed compositions were Pr(5/8)Ca(3/8)MnO(3) and La(0.275)Pr(0.35)Ca(3/8)MnO(3). The prepared loose powder was thermally attached to glass (and quartz) capillary walls by gentle heating to ensure positional stability during data collection. Many diffraction data sets were recorded and some of them were split as expected from the main observed twin law: 180° rotation around [101]. The peak splitting was measured with very high precision owing to the high-resolution nature of the diffraction data, with a resolution (Δd/d) better than 2.0 × 10(-4). Furthermore, when these microcrystals are illuminated coherently, the different crystallographic phases of the structure factors induce interference in the form of a speckle pattern. The three-dimensional speckled Bragg peak intensity distribution has been measured providing information about the twin domains within the microcrystals. Research is ongoing to invert the measured patterns. Successful phase retrieval will allow mapping out the twin domains and twin boundaries which play a key role in the physical properties.
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Affiliation(s)
- Miguel A G Aranda
- Departamento de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071 Málaga, Spain.
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11
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Berenguer F, Bean R, McCallion C, Zhang F, Wallace K, Bozec L, Robinson IK. Coherent X-ray diffraction imaging of antiphase domains and biological tissues with ptychography. Acta Crystallogr A 2009. [DOI: 10.1107/s0108767309098705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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