Competition between interatomic Coulombic decay and autoionization of doubly-excited atoms

Doubly-excited atoms are known to autoionize. It is shown that in the presence of a neighboring atom, there is competition between autoionization and ICD (Interatomic Coulombic Decay) where the doubly-excited atom partially relaxes and the neighbor ionizes. Through a Rydberg series of doubly-excited...

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Hauptverfasser: Jabbari, Ghazal (VerfasserIn) , Gokhberg, Kirill (VerfasserIn) , Cederbaum, Lorenz S. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 20 May 2020
In: Chemical physics letters
Year: 2020, Jahrgang: 754
DOI:10.1016/j.cplett.2020.137571
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.cplett.2020.137571
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0009261420304863
Volltext
Verfasserangaben:Ghazal Jabbari, Kirill Gokhberg, Lorenz S. Cederbaum

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520 |a Doubly-excited atoms are known to autoionize. It is shown that in the presence of a neighboring atom, there is competition between autoionization and ICD (Interatomic Coulombic Decay) where the doubly-excited atom partially relaxes and the neighbor ionizes. Through a Rydberg series of doubly-excited states, the autoionization rate decreases in contrast to the ICD rate and ICD becomes dominant. Depending on the nature of the neighbor and the number of neighbors, other interatomic processes become operative even after autoionization, all demonstrating that the physics of doubly-excited species is strongly enriched in the presence of neighbors. Explicit examples are discussed. 
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