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Theoretical and experimental investigation of Electron Transfer Mediated Decay in ArKr clusters
Univ Tromso, Dept Chem, Ctr Theoret & Computat Chem, N-9037 Tromso, Norway..
Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany.;Tech Univ Berlin, Inst Opt & Atomare Phys, Hardenbergstr 36, D-10623 Berlin, Germany..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and Condensed Matter Physics. Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany..
Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany.;DESY, Ctr Free Electron Laser Sci, Notkestr 85, D-22607 Hamburg, Germany..
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2017 (English)In: Chemical Physics, ISSN 0301-0104, E-ISSN 1873-4421, Vol. 482, 226-238 p.Article in journal (Refereed) Published
Abstract [en]

We investigate the electronic decay of an Ar 3s(-1) vacancy in medium sized ArKr clusters. The only energetically accessible, radiationless decay mechanism is Electron Transfer Mediated Decay Three (ETMD3). Here, the argon vacancy is filled by an electron from one krypton atom, and the excess energy is transferred to a second krypton atom which consequently emits an electron. For the theoretical calculation of ETMD3 spectra, in a bottom-up approach, we study the dependence of the decay width on the geometry of elementary sets of three atoms, from which any cluster can be composed. We simulate the ETMD3 spectra of medium sized ArKr clusters and compare the resulting spectra to experimental ETMD electron spectra presented earlier (Forstel et al, 2011) and in this work. We show that ETMD3 is the dominating relaxation mechanism for the cases studied here. Experimental secondary electron spectra from ArKr clusters are compared to pure Ar and pure Kr clusters.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2017. Vol. 482, 226-238 p.
Keyword [en]
Electron Transfer Mediated Decay, ETMD3, Heterogeneous noble gas clusters, Electronic decay process, ArKr
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-319138DOI: 10.1016/j.chemphys.2016.09.006ISI: 000394634700029OAI: oai:DiVA.org:uu-319138DiVA: diva2:1086229
Funder
German Research Foundation (DFG), Forschergruppe 1789
Available from: 2017-03-31 Created: 2017-03-31 Last updated: 2017-04-07Bibliographically approved

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