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Non-thermal structural transformation of diamond driven by x-rays
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SYSNO ASEP 0584107 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Non-thermal structural transformation of diamond driven by x-rays Author(s) Heimann, P. (US)
Hartley, N. J. (US)
Inoue, I. (JP)
Tkachenko, V. (DE)
Antoine, A. (US)
Dorchies, F. (FR)
Falcone, R. (US)
Gaudin, J. (FR)
Hoeppner, H. (DE)
Inubushi, Y. (JP)
Kapcia, K. J. (DE)
Lee, H. J. (US)
Lipp, V. (DE)
Martinez, P. (FR)
Medvedev, Nikita (FZU-D) ORCID, RID
Tavella, F. (US)
Toleikis, S. (DE)
Yabashi, M. (JP)
Yabuuchi, T. (JP)
Yamada, J. (JP)
Ziaja, B. (DE)Number of authors 21 Article number 054502 Source Title Structural Dynamics. - : AIP Publishing
Roč. 10, č. 5 (2023)Number of pages 7 s. Language eng - English Country US - United States Keywords non-thermal structural transformation ; diamond ; intense x-ray pulses ; SACLA XFEL facility ; experiments and XTANT+ simulation Subject RIV BH - Optics, Masers, Lasers OECD category Fluids and plasma physics (including surface physics) R&D Projects LTT17015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2018114 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF18_053/0016627 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001094050700001 EID SCOPUS 85175539646 DOI 10.1063/4.0000193 Annotation Intense x-ray pulses can cause the non-thermal structural transformation of diamond. At the SACLA XFEL facility, pump x-ray pulses triggered this phase transition, and probe x-ray pulses produced diffraction patterns. Time delays were observed from 0 to 250 fs, and the x-ray dose varied from 0.9 to 8.0 eV/atom. The intensity of the (111), (220), and (311) diffraction peaks decreased with time, indicating a disordering of the crystal lattice. From a Debye-Waller analysis, the rms atomic displacements perpendicular to the (111) planes were observed to be significantly larger than those perpendicular to the (220) or (311) planes. At a long time delay of 33 ms, graphite (002) diffraction indicates that graphitization did occur above a threshold dose of 1.2 eV/atom. These experimental results are in qualitative agreement with XTANT+ simulations using a hybrid model based on density-functional tight-binding molecular dynamics. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0352169
Number of the records: 1