Erlangen 2018 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 17: Posters 2: Cold Molecules and Clusters
MO 17.14: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Orangerie
Molecular Frame Angular Emission Distributions of Resonant ICD Electrons in Ne2 and HeNe — •Abir Mhamdi1, Florian Trinter2, Till Jahnke2, Kirill Gokhberg3, Reinhard Dörner2, and Philipp V. Demekhin1 — 1Institut für Physik und CINSaT, Universität Kassel, 34132 Kassel, Germany — 2Institut für Kernphysik, Universität Frankfurt, 60438 Frankfurt am Main, Germany — 3Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld, 69120 Heidelberg, Germany
Molecular Frame Angular Distributions (MFADs) of slow electrons released by Interatomic Coulombic Decay in van der Waals dimers are studied by the Single Center (SC) method [1] including the underlying nuclear dynamics. Specifically, we considered the spectator resonant ICD after 2s−np inner valence excitation of Ne dimers, which is the dominant decay pathway for n≥5 [2]. In addition, we investigated the photoionization of HeNe across the He(1s3p) excitation which is a good candidate for the antenna-receiver mechanism [3]. Theoretical predictions for HeNe are in good agreement with the results of the coincidence experiments carried out by COLTRIMS technique [4]. It is demonstrated that MFAD of the resonant ICD electrons provides a direct access to the symmetry of the intermediate electronic states.
References: [1] Ph. V. Demekhin, et al., Journal of Chemical Physics 134, 024113 (2011). [2] S. Kopelke, et al., J. Chem. Phys. 130, 144103 (2009). [3] F. Trinter, et al., Phys. Rev. Lett. 111, 093401 (2013). [4] R. Dörner, et al., Physics Reports 330, 95 (2000).