Direct observation of interatomic Coulombic decay and subsequent ion-atom 
scattering in helium nanodroplets

Wiegandt, F.; Trinter, Florian; Henrichs, K.; Metz, D.; Pitzer, M.; Waitz, M.; Maalouf, E. Jabbour al; Janke, C.; Rist, J.; Wechselberger, N.; Miteva, T.; Kazandjian, S.; Schöffler, M.; Sisourat, N.; Jahnke, T.; Dörner, R.

doi:10.1103/PhysRevA.100.022707

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Direct observation of interatomic Coulombic decay and subsequent ion-atom scattering in helium nanodroplets

MPS-Authors

Trinter, Florian
Institut für Kernphysik, Goethe Universität;
Deutsches Elektronen-Synchrotron (DESY), FS-PETRA-S;
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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PhysRevA.100.022707.pdf
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引用

Wiegandt, F., Trinter, F., Henrichs, K., Metz, D., Pitzer, M., Waitz, M., Maalouf, E. J. a., Janke, C., Rist, J., Wechselberger, N., Miteva, T., Kazandjian, S., Schöffler, M., Sisourat, N., Jahnke, T., & Dörner, R. (2019). Direct observation of interatomic Coulombic decay and subsequent ion-atom scattering in helium nanodroplets. Physical Review A, 100(2):. doi:10.1103/PhysRevA.100.022707.

引用: https://hdl.handle.net/21.11116/0000-0004-8B3A-F

要旨

We report on the experimental observation of interatomic Coulombic decay (ICD) in pure ⁴He nanoclusters of mean sizes between N ∼ 5000 and 30 000 and the subsequent scattering of energetic He⁺ fragments inside the neutral cluster by using cold target recoil ion momentum spectroscopy. ICD is induced in He clusters by using vacuum ultraviolet light of hν=67eV from the BESSY II synchrotron. The electronic decay creates two neighboring ions in the cluster at a well-defined distance. The measured fragment energies and angular correlations show that a main energy loss mechanism of these ions inside the cluster is a single hard binary collision with one atom of the cluster.