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Laser-induced ultrafast structural transformations in thin Fe layer revealed by time-resolved X-ray diffraction

Fuente: arXiv

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Hauptverfasser:	Liubchenko, O., Antonowicz, J., Sokolowski-Tinten, K., Zalden, P., Minikayev, R., Milov, I., Albert, T. J., Bressler, C., Chojnacki, M., Dłużewski, P., Dzięgielewski, P., Rodriguez-Fernandez, A., Fronc, K., Gawelda, W., Georgarakis, K., Greer, A. L., Jacyna, I., van de Kruijs, R. W. E., Kamiński, R., Khakhulin, D., Klinger, D., Kosyl, K., Kubicek, K., Olczak, A., Panagiotopoulos, N. T., Sikora, M., Sun, P., Yousef, H., Zajkowska-Pietrzak, W., Sobierajski, R.
Format:	Preprint
Veröffentlicht:	2025
Schlagworte:	Materials Science Mesoscale and Nanoscale Physics
Online-Zugang:	Acceder al recurso
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_version_	1866911097219448832
author	Liubchenko, O. Antonowicz, J. Sokolowski-Tinten, K. Zalden, P. Minikayev, R. Milov, I. Albert, T. J. Bressler, C. Chojnacki, M. Dłużewski, P. Dzięgielewski, P. Rodriguez-Fernandez, A. Fronc, K. Gawelda, W. Georgarakis, K. Greer, A. L. Jacyna, I. van de Kruijs, R. W. E. Kamiński, R. Khakhulin, D. Klinger, D. Kosyl, K. Kubicek, K. Olczak, A. Panagiotopoulos, N. T. Sikora, M. Sun, P. Yousef, H. Zajkowska-Pietrzak, W. Sobierajski, R.
author_facet	Liubchenko, O. Antonowicz, J. Sokolowski-Tinten, K. Zalden, P. Minikayev, R. Milov, I. Albert, T. J. Bressler, C. Chojnacki, M. Dłużewski, P. Dzięgielewski, P. Rodriguez-Fernandez, A. Fronc, K. Gawelda, W. Georgarakis, K. Greer, A. L. Jacyna, I. van de Kruijs, R. W. E. Kamiński, R. Khakhulin, D. Klinger, D. Kosyl, K. Kubicek, K. Olczak, A. Panagiotopoulos, N. T. Sikora, M. Sun, P. Yousef, H. Zajkowska-Pietrzak, W. Sobierajski, R.
contents	The ultrafast structural response of a thin iron film to sub-ps pulsed laser-induced heating has been investigated using time-resolved X-ray diffraction in the partial melting regime. A tetragonal distortion of the bcc-phase emerges at ~6 ps. Its formation is delayed relative to the initial heating (1-2 ps) and partial melting (2-5 ps) of the material, and controlled by the stress release in the quasi-instantaneously pressurized film. The distortion persists for at least 60 ps indicating the formation of a metastable bct phase between the equilibrium bcc and fcc phases.
format	Preprint
id	arxiv_https___arxiv_org_abs_2506_18730
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Laser-induced ultrafast structural transformations in thin Fe layer revealed by time-resolved X-ray diffraction Liubchenko, O. Antonowicz, J. Sokolowski-Tinten, K. Zalden, P. Minikayev, R. Milov, I. Albert, T. J. Bressler, C. Chojnacki, M. Dłużewski, P. Dzięgielewski, P. Rodriguez-Fernandez, A. Fronc, K. Gawelda, W. Georgarakis, K. Greer, A. L. Jacyna, I. van de Kruijs, R. W. E. Kamiński, R. Khakhulin, D. Klinger, D. Kosyl, K. Kubicek, K. Olczak, A. Panagiotopoulos, N. T. Sikora, M. Sun, P. Yousef, H. Zajkowska-Pietrzak, W. Sobierajski, R. Materials Science Mesoscale and Nanoscale Physics The ultrafast structural response of a thin iron film to sub-ps pulsed laser-induced heating has been investigated using time-resolved X-ray diffraction in the partial melting regime. A tetragonal distortion of the bcc-phase emerges at ~6 ps. Its formation is delayed relative to the initial heating (1-2 ps) and partial melting (2-5 ps) of the material, and controlled by the stress release in the quasi-instantaneously pressurized film. The distortion persists for at least 60 ps indicating the formation of a metastable bct phase between the equilibrium bcc and fcc phases.
title	Laser-induced ultrafast structural transformations in thin Fe layer revealed by time-resolved X-ray diffraction
topic	Materials Science Mesoscale and Nanoscale Physics
url	https://arxiv.org/abs/2506.18730