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MO: Fachverband Molekülphysik

MO 17: Cluster II (joint session A/MO)

MO 17.1: Poster

Mittwoch, 13. März 2019, 16:15–18:15, S Fobau Physik

Investigation of 2p Auger decay in argon clusters by electron-electron and electron-photon coincidences — •Catmarna Küstner-Wetekam¹, Philipp Schmidt¹, Christian Ozga¹, Huda Otto¹, Arno Ehresmann¹, Uwe Hergenhahn^2,3, André Knie¹, and Andreas Hans¹ — ¹Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany — ²Max Planck Institute for Plasma Physics Wendelsteinstr. 1, 17491 Greifswald, Germany — ³Leibniz Institute of Surface Modification, Permoserstr. 15, 04318 Leipzig, Germany

The response of prototype systems to ionizing soft X-ray irradiation is of crucial interest for the study of fundamental processes in radiation chemistry. Here we investigate Auger processes following 2p inner-shell ionization of argon atoms and clusters and discuss differences in the spectra of the atomic and the condensed sample. These Auger processes are important for the population of the initial states of various interatomic processes such as the Interatomic Coulombic Decay (ICD) and Radiative Charge Transfer (RCT). The coincident measurement of two electrons or one electron and one photon makes it possible to gain new insights into these processes.