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|Title:||X-ray laser-induced electron dynamics observed by femtosecond diffraction from nanocrystals of Buckminsterfullerene.|
|Authors:||Abbey, Brian;Dilanian, Ruben A;Darmanin, Connie;Ryan, Rebecca A;Putkunz, Corey T;Martin, Andrew V;Wood, David;Streltsov, Victor;Jones, Michael W M;Gaffney, Naylyn;Hofmann, Felix;Williams, Garth J;Boutet, Sébastien;Messerschmidt, Marc;Seibert, M Marvin;Williams, Sophie;Curwood, Evan;Balaur, Eugeniu;Peele, Andrew G;Nugent, Keith A;Quiney, Harry M|
|Affiliation:||Australian Research Council (ARC) Centre of Excellence in Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe Institute for Molecular Sciences, La Trobe University, Bundoora, Victoria, Australia|
ARC Centre of Excellence in Advanced Molecular Imaging, School of Physics, University of Melbourne, Parkville, Victoria, Australia
Department of Physics, Imperial College London, London SW7 2AZ, UK
Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia
Australian Synchrotron, Clayton, Victoria, Australia
Swinburne University of Technology, Melbourne, Victoria, Australia
Department of Engineering Science, University of Oxford, Oxford, UK
Brookhaven National Laboratory, , Upton, NY, USA
Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
BioXFEL Science and Technology Center, Buffalo, NY, USA..
Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Uppsala, Sweden
The Florey Institute of Neuroscience and Mental Health, Heidelberg, Victoria, Australia
|Citation:||Science advances 2016; 2(9): e1601186|
|Abstract:||X-ray free-electron lasers (XFELs) deliver x-ray pulses with a coherent flux that is approximately eight orders of magnitude greater than that available from a modern third-generation synchrotron source. The power density of an XFEL pulse may be so high that it can modify the electronic properties of a sample on a femtosecond time scale. Exploration of the interaction of intense coherent x-ray pulses and matter is both of intrinsic scientific interest and of critical importance to the interpretation of experiments that probe the structures of materials using high-brightness femtosecond XFEL pulses. We report observations of the diffraction of extremely intense 32-fs nanofocused x-ray pulses by a powder sample of crystalline C60. We find that the diffraction pattern at the highest available incident power significantly differs from the one obtained using either third-generation synchrotron sources or XFEL sources operating at low output power and does not correspond to the diffraction pattern expected from any known phase of crystalline C60. We interpret these data as evidence of a long-range, coherent dynamic electronic distortion that is driven by the interaction of the periodic array of C60 molecular targets with intense x-ray pulses of femtosecond duration.|
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
|Subjects:||Femtosecond electron dynamics|
coherent radiation damage
long-range electronic correlations
x-ray free electron lasers
|Appears in Collections:||Journal articles|
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