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Title:Slow interatomic Coulombic decay of multiply excited neon clusters
Authors:Iablonskyi, Denis (Author)
De Ninno, Giovanni (Author)
et al.
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Ne clusters (∼ 5000 atoms) were resonantly excited (2 p→ 3 s) by intense free electron laser (FEL) radiation at FERMI. Such multiply excited clusters can decay nonradiatively via energy exchange between at least two neighboring excited atoms. Benefiting from the precise tunability and narrow bandwidth of seeded FEL radiation, specific sites of the Ne clusters were probed. We found that the relaxation of cluster surface atoms proceeds via a sequence of interatomic or intermolecular Coulombic decay (ICD) processes while ICD of bulk atoms is additionally affected by the surrounding excited medium via inelastic electron scattering. For both cases, cluster excitations relax to atomic states prior to ICD, showing that this kind of ICD is rather slow (picosecond range). Controlling the average number of excitations per cluster via the FEL intensity allows a coarse tuning of the ICD rate.
Keywords:Clusters, low-denisty matter, free-electron laser
Year of publishing:2016
Number of pages:276806
Numbering:117, 2016
COBISS_ID:34326019 Link is opened in a new window
URN:URN:SI:UNG:REP:TQDZ2VQK
Views:102
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Record is a part of a journal

Title:Physical Review Letters
Year of publishing:2016

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