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MO: Fachverband Molekülphysik
MO 10: Collisions and Reactions
MO 10.10: Vortrag
Mittwoch, 11. März 2020, 13:15–13:30, f142
Femtosecond-resolved study of x-ray induced fragmentation of buckyballs — •Zoltan Jurek1, Nora Berrah2, Alvaro Sanchez-Gonzalez3, Sang-Kil Son1, and Robin Santra1,4 — 1Center for Free-Electron Laser Science, DESY, Hamburg, Germany — 2Physics Department, University of Connecticut, Storrs, CT, USA — 3Department of Physics, Imperial College London, London, UK — 4Department of Physics, Universität Hamburg, Hamburg, Germany
In this talk we report on a joint experimental-theoretical time resolved study of the dynamics of gas phase C60 molecules exposed to ultrashort intense X-ray Free Electron Laser (XFEL) pulses [1]. In the experiment two consecutive x-ray pulses were applied: the first (pump) pulse initiated the time evolution by multiply ionizing the molecule, while the second one (probe pulse) altered the system by further ionization, creating pump-probe delay dependent spectroscopy signals. Our theoretical simulations reveal exciting details of the complex fragmentation, such as the release of neutral atomic fragments. Moreover, the simulations also connect delay times appearing in the observed pump-probe data directly to real timescales of the dynamics initiated by a single pulse. Our study is an important step in the understanding of XFEL-matter interaction, crucial for high intensity XFEL applications.
[1] N. Berrah et al, Nat. Phys. (2019) doi:10.1038/s41567-019-0665-7