Berlin 2014 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 5: Posters 1: Electronic Spectroscopy, Photochemistry, Femtosecond Spectroscopy

MO 5.8: Poster

Montag, 17. März 2014, 16:30–18:30, Spree-Palais

Evolution of Interatomic Coulombic Decay in the Time Domain — •Florian Trinter1, Joshua B. Williams1, Miriam Weller1, Markus Waitz1, Martin Pitzer1, Jörg Voigtsberger1, Carl Schober1, Gregor Kastirke1, Christian Müller1, Christoph Goihl1, Phillip Burzynski1, Florian Wiegandt1, Tobias Bauer1, Robert Wallauer1, Hendrik Sann1, Anton Kalinin1, Lothar Ph. H. Schmidt1, Markus Schöffler1, Nicolas Sisourat2, and Till Jahnke11Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany — 2Université Pierre et Marie Curie, UMR 7614, Laboratoire de Chimie Physique Matière et Rayonnement, 11 rue Pierre et Marie Curie, F-75005 Paris, France

During the past 15 years a novel decay mechanism of excited atoms has been discovered and investigated. This so-called interatomic Coulombic decay (ICD) involves the chemical environment of the electronically excited atom: the excitation energy is transferred (in many cases over long distances) to a neighbor of the initially excited particle usually ionizing that neighbor. It turned out that ICD is a very common decay route in nature as it occurs across van der Waals and hydrogen bonds. The time evolution of ICD is predicted to be highly complex, as its efficiency strongly depends on the distance of the atoms involved and this distance typically changes during the decay. Here we present the first direct measurement of the temporal evolution of ICD using a novel experimental approach.

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DPG-Physik > DPG-Verhandlungen > 2014 > Berlin