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Soft x-ray induced femtosecond solid-to-solid phase transition
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SYSNO ASEP 0508746 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Soft x-ray induced femtosecond solid-to-solid phase transition Author(s) Tavella, F. (US)
Hoeppner, M. (CA)
Tkachenko, V. (DE)
Medvedev, Nikita (UFP-V) ORCID
Capotondi, F. (IT)
Golz, T. (DE)
Kai, Y. (DE)
Manfredda, M. (IT)
Pedersoli, E. (IT)
Prandolini, M.J. (DE)
Stojanovic, N. (DE)
Tanikawa, T. (DE)
Teubner, U. (DE)
Toleikis, S. (DE)
Ziaja, B. (DE)Number of authors 15 Source Title High energy density physics. - : Elsevier - ISSN 1574-1818
Roč. 24, September (2017), s. 22-27Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords free-electron laser ; pulse-duration ; fel-pulse ; diamond ; graphitization ; diffraction ; graphite ; coherent ; Free electron laser sciences ; Material science ; Condensed matter physics Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 UT WOS 000410831800004 EID SCOPUS 85021083722 DOI https://doi.org/10.1016/j.hedp.2017.06.001 Annotation Soft x-rays were applied to induce graphitization of diamond through a non-thermal solid-to-solid phase transition. This process was observed within poly-crystalline diamond with a time-resolved experiment using ultrashort soft x-ray pulses of duration 52.5 fs and cross correlated by an optical pulse of duration 32.8 fs. This scheme enabled for the first time the measurement of a phase transition on a timescale of similar to 150 fs. Excellent agreement between experiment and theoretical predictions was found, using a dedicated code that followed the non-equilibrium evolution of the irradiated diamond including all transient electronic and structural changes. These observations confirm that soft x-rays can induce a non-thermal ultra fast solid-to-solid phase transition on a hundred femtosecond timescale. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address https://www.sciencedirect.com/science/article/abs/pii/S1574181817300617?via%3Dihub
Number of the records: 1