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Neutralization of multiply charged ground-state ions by collective electron transfer from an environment

Highly charged cations are omnipresent species after the interaction of high-energy or high-intensity light with matter. When embedded in environments, the mechanism and outcome of the redistribution of the cation’s charge are crucial for the further fate of the whole system. Generally, ground-state...

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Main Authors: Marder, Lutz (Author) , Küstner-Wetekam, Catmarna (Author) , Kiefer, Nils (Author) , Viehmann, Johannes (Author) , Golchert, Niklas (Author) , Heikura, Emilia (Author) , Trinter, Florian (Author) , Cubaynes, Denis (Author) , Palaudoux, Jérôme (Author) , Penent, Francis (Author) , Ehresmann, Arno (Author) , Cederbaum, Lorenz S. (Author) , Kolorenč, Přemysl (Author) , Hans, Andreas (Author)
Format: Article (Journal)
Language:English
Published: 30 July 2025
In: Physical review letters
Year: 2025, Volume: 135, Issue: 5, Pages: 1-6
ISSN:1079-7114
DOI:10.1103/9yd1-9gkx
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/9yd1-9gkx
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/9yd1-9gkx
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Author Notes:Lutz Marder, Catmarna Küstner-Wetekam, Nils Kiefer, Johannes Viehmann, Niklas Golchert, Emilia Heikura, Florian Trinter, Denis Cubaynes, Jérôme Palaudoux, Francis Penent, Arno Ehresmann, Lorenz S. Cederbaum, Přemysl Kolorenč, and Andreas Hans
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Summary:Highly charged cations are omnipresent species after the interaction of high-energy or high-intensity light with matter. When embedded in environments, the mechanism and outcome of the redistribution of the cation’s charge are crucial for the further fate of the whole system. Generally, ground-state cations can decay by charge transfer, proceeding radiatively, through nuclear dynamics, or by electron-transfer-mediated decay (ETMD). ETMD causes electron emission from a remote neighbor and appears ubiquitous in loosely bound systems. It remained unclear how multiply charged ions decay if conventional ETMD channels are closed. Here, we show that a yet undiscovered variant of ETMD is possible, where multiple electrons are collectively transferred. Explicitly, we observe ETMD in which two electrons from two distinct neighbors (partially) neutralize a multiply charged ion, and an electron from a fourth site is emitted. According to the established nomenclature, we suggest naming the process ETMD(4).
Item Description:Gesehen am 09.12.2025
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/9yd1-9gkx

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