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

Abstract

We report on the experimental observation of interatomic Coulombic decay (ICD) in pure ${}^4$He nanoclusters of mean sizes between $N\approx$ 5000 and 30000 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 $h\nu =$ 67 eV 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.

arXiv comment6 pages, 4 figures

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Cited by in corpus (5)

• Time-resolved study of resonant interatomic Coulombic decay in helium nanodroplets
• Time-resolved Ultrafast Interatomic Coulombic Decay in Superexcited Sodium-doped Helium Nanodroplets
• Efficient Indirect Interatomic Coulombic Decay Induced by Photoelectron Impact Excitation in Large He Nanodroplets
• Plasmonic Resonant Intercluster Coulombic Decay
• Density functional study of the variants of inter-Coulombic decay resonances in the photoionization of Cl@C60