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Marcel Mudrich

Interatomic Coulombic decay in helium nanodroplets

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  • Mykola Shcherbinin, Universität Freiburg
  • ,
  • Aaron Laforge, Albert-Ludwigs-Universität Freiburg
  • ,
  • Vandana Sharma, Indian Institute of Technology Hyderabad
  • ,
  • Michele Devetta, Istituto di Fotonica e Nanotecnologie
  • ,
  • Robert Richter, Elettra-Sincrotrone Trieste, in Area Science Park, 34149 Basovizza, Trieste
  • ,
  • Robert Moshammer, Max-Planck-Institut für Kernphysik, Heidelberg
  • ,
  • Thomas Pfeifer, Max Planck Institut für Kernphysik, 69117 Heidelberg
  • ,
  • Marcel Mudrich
Interatomic Coulombic decay (ICD) is induced in helium nanodroplets by photoexciting the n=2 excited state of He+ using XUV synchrotron radiation. By recording multiple-coincidence electron and ion images we find that ICD occurs in various locations at the droplet surface, inside the surface region, or in the droplet interior. ICD at the surface gives rise to energetic He+ ions as previously observed for free He dimers. ICD deeper inside leads to the ejection of slow He+ ions due to Coulomb explosion delayed by elastic collisions with neighboring He atoms, and to the formation of Hek+ complexes.
TidsskriftPhysical Review A
Sider (fra-til)013407
StatusUdgivet - 2017

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