Heidelberg 2015 – wissenschaftliches Programm
A 28.2: Poster
Mittwoch, 25. März 2015, 17:00–19:00, C/Foyer
Angle-resolved study of resonant Auger decay and fluorescence emission processes after core excitations of the terminal and central nitrogen atoms in N2O — André Knie1, Markus Ilchen2,3, Philipp Schmidt1, Philipp Reiß1, •Christian Ozga1, Andreas Hans1, Nicolas David Müglich1, Leif Glaser2, Peter Walter2, Jens Viefhaus2, Arno Ehresmann1, and Philipp V Demekhin1 — 1Institut für Physik, Universität Kassel, Heinrich-Plett Straße 40, 34132 Kassel, Germany — 2Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany — 3European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany
The linear molecule N2O is one of the easiest showcase examples for the investigation of electronic properties within completely different chemical surroundings. Here we present our results of the study on interference effects between direct and indirect ionization processes (ESI) as well as between the relaxation into a specific vibronic state from different vibrational states of a higher lying electronic state (LVI). Since these effects are more pronounced in angle resolved measurements due to the sensitivity on the phases of the outgoing partial photoelectron waves we investigated the behavior of the angular distribution parameters of photoelectrons and fluorescence photons under variation of the energy of the exciting photons in the vicinity of the resonant 1s core excitations of the central and terminal nitrogen atom.