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Enhanced ionization of embedded clusters by electron-transfer-mediated decay in helium nanodroplets

We report the observation of electron-transfer-mediated decay (ETMD) involving magnesium (Mg) clusters embedded in helium (He) nanodroplets. ETMD is initiated by the ionization of He followed by removal of two electrons from the Mg clusters of which one is transferred to the He ion while the other e...

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Main Authors: LaForge, Aaron (Author) , Stumpf, Vasili (Author) , Gokhberg, Kirill (Author) , von Vangerow, J. (Author) , Stienkemeier, F. (Author) , Kryzhevoi, Nikolai V. (Author) , O’Keeffe, P. (Author) , Ciavardini, A. (Author) , Krishnan, S. R. (Author) , Coreno, M. (Author) , Prince, K. C. (Author) , Richter, R. (Author) , Moshammer, R. (Author) , Pfeifer, T. (Author) , Cederbaum, Lorenz S. (Author) , Mudrich, M. (Author)
Format: Article (Journal)
Language:English
Published: 19 May 2016
In: Physical review letters
Year: 2016, Volume: 116, Issue: 20, Pages: 1-5
ISSN:1079-7114
DOI:10.1103/PhysRevLett.116.203001
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.116.203001
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.116.203001
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Author Notes:A. C. LaForge, V. Stumpf, K. Gokhberg, J. von Vangerow, F. Stienkemeier, N. V. Kryzhevoi, P. O’Keeffe, A. Ciavardini, S. R. Krishnan, M. Coreno, K. C. Prince, R. Richter, R. Moshammer, T. Pfeifer, L. S. Cederbaum, and M. Mudrich
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Summary:We report the observation of electron-transfer-mediated decay (ETMD) involving magnesium (Mg) clusters embedded in helium (He) nanodroplets. ETMD is initiated by the ionization of He followed by removal of two electrons from the Mg clusters of which one is transferred to the He ion while the other electron is emitted into the continuum. The process is shown to be the dominant ionization mechanism for embedded clusters for photon energies above the ionization potential of He. For Mg clusters larger than five atoms we observe stable doubly ionized clusters. Thus, ETMD provides an efficient pathway to the formation of doubly ionized cold species in doped nanodroplets.
Item Description:Gesehen am 08.06.2020
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.116.203001

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