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Ultrafast bond softening in bismuth: mapping a solid's interatomic potential with X-rays

  • Intense femtosecond laser excitation can produce transient states of matter that would otherwise be inaccessible to laboratory investigation. At high excitation densities, the interatomic forces that bind solids and determine many of their properties can be substantially altered. Here, we present the detailed mapping of the carrier density-dependent interatomic potential of bismuth approaching a solid-solid phase transition. Our experiments combine stroboscopic techniques that use a high-brightness linear electron accelerator-based x-ray source with pulse-by-pulse timing reconstruction for femtosecond resolution, allowing quantitative characterization of the interatomic potential energy surface of the highly excited solid.

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Author:D. M. Fritz, D. A. Reis, B. Adams, R. A. Akre, J. Arthur, Christian Blome, P. H. Bucksbaum, A. L. Cavalieri, S. Engemann, S. Fahy, R. W. Falcone, P. H. Fuoss, K. J. Gaffney, M. J. George, J. Hajdu, M. P. Hertlein, P. B. Hillyard, Michael Horn-von Hoegen, Martin KammlerORCiDGND, J. Kaspar, R. Kienberger, P. Krejcik, S. H. Lee, A. M. Lindenberg, B. McFarland, D. Meyer, T. Montagne, E. D. Murray, A. J. Nelson, M. Nicoul, R. Pahl, J. Rudati, H. Schlarb, D. P. Siddons, Klaus Sokolowski-Tinten, Th Tschentscher, D. von der Linde, J. B. Hastings
DOI:https://doi.org/10.1126/science.1135009
Parent Title (English):Science
Publisher:AAAS
Document Type:Article
Language:English
Year of first Publication:2007
Release Date:2022/11/24
Volume:315
Issue:5812
First Page:633
Last Page:636
Institutes:Fakultät Angewandte Natur- und Kulturwissenschaften
Fakultät Angewandte Natur- und Kulturwissenschaften / Labor Nanoanalytik und Halbleiterchemie (Nanochem)
Begutachtungsstatus:peer-reviewed
Publication:Externe Publikationen
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG
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