Speaker
Dr
Oleksii Liubchenko
(Institute of Physics Polish Academy of Sciences)
Description
The atomic structure of the thin Fe layer after sub-ps pulsed laser annealing has been studied by time-resolved X-ray diffraction [1]. The laser pulse energy is transferred to the lattice within about 1 ps due to the strong electron-phonon coupling. This rapid heating leads to ultrafast melting. However, solid-solid structural transformations occur below the threshold of complete melting. At high temperatures, phonon softening occurs, leading to lattice distortion, as predicted by ab initio theoretical simulations.
[1] J. Antonowicz et al., Acta Materialia 276 (2024) 120043
| Type of presence | Presence online |
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Primary author
Dr
Oleksii Liubchenko
(Institute of Physics Polish Academy of Sciences)
Co-authors
Dr
Dorota Klinger
(Institute of Physics, Polish Academy of Sciences)
Iwanna Jacyna
(Institute of Physics, Polish Academy of Sciences)
Dr
Jerzy Antonowicz
(Faculty of Physics, Warsaw University of Technology)
Prof.
Klaus Sokolowski-Tinten
(Faculty of Physics, University of Duisburg-Essen, Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen)
Dr
Peter Zalden
(European XFEL)
Dr
Roman Minikayev
(Institute of Physics, Polish Academy of Sciences)
Ryszard Sobierajski
(Institute of Physics, Polish Academy of Sciences)
Mr
Thies Albert
(Faculty of Physics, University of Duisburg-Essen)
