Hannover 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 6: Electronic Spectroscopy II
MO 6.4: Vortrag
Dienstag, 10. März 2020, 14:45–15:00, f102
Ultrafast non-local decay of core vacancies: from noble gas clusters to the suppression of radiation damage — •Andreas Hans1, Catmarna Küstner-Wetekam1, Philipp Schmidt1, Sascha Deinert2, Florian Trinter2, Gregor Hartmann1, Arno Ehresmann1, Lorenz Cederbaum3, Nikolai Kryzhevoi3, and André Knie1 — 1Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany — 2Deutsches Elektronen-Sychrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany — 3Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
We discuss the influence of an environment on the decay of core vacancies. In isolated atoms or molecules, core ionization is typically followed by Auger decay into doubly ionized states. In molecules, the severe consequence is the irreparable fragmentation. In an environment, charge and energy dissipation to the surrounding may protect the dicationic molecule from fragmentation. Here, we present experimental evidence that the protective effect of the environment sets in even earlier, namely by direct intermolecular decay of the initial core vacancy.