Erlangen 2018 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 23: Resonant Energy Transfer and Interatomic Coulombic Decay II

MO 23.3: Vortrag

Freitag, 9. März 2018, 11:00–11:15, PA 1.150

Evidence for direct detection of radiative charge transfer photons from Auger final states in neon clusters — •Andreas Hans1, Vasili Stumpf2, Xaver Holzapfel1, Philipp Schmidt1, Christian Ozga1, Catmarna Küstner-Wetekam1, Till Jahnke3, Arno Ehresmann1, Philipp V. Demekhin1, Kirill Gokhberg2, and André Knie11Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany — 2Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany — 3Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany

Non-local charge distribution processes in dense samples like clusters and liquids have recently attracted tremendous attention in atomic and molecular physics. As a result of progress in both theory and experiment a variety of mechanisms was predicted and observed. Among them is radiative charge transfer (RCT), in which the transfer of an electron from a neutral site of a cluster to a doubly charged site is accompanied by photon emission. The occurence of RCT has been experimentally deduced from energy conservation reasons by multi-particle coincidence detection after inner-shell ionization and subsequent Auger decay in noble gas clusters. However, direct observation of the emitted photons has not been reported so far, although this might be an advantageous method to track RCT in dense matter. Here, we report evidence for the first measurement of photons emitted in an RCT process in large neon clusters.

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