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Direct Observation of Double-Core-Hole Shake-Up States in Photoemission
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2015 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 114, no 9, 093001Article in journal (Refereed) Published
Abstract [en]

Direct measurements of Ar+ 1s(-1)2p(-1)nl double-core-hole shake-up states are reported using conventional single-channel photoemission, offering a new and relatively easy means to study such species. The high-quality results yield accurate energies and lifetimes of the double-core-hole states. Their photoemission spectrum also can be likened to 1s absorption of an exotic argon ion with a 2p core vacancy, providing new information about the spectroscopy of both this unusual ionic state as well as the neutral atom.

Place, publisher, year, edition, pages
2015. Vol. 114, no 9, 093001
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Physical Sciences
URN: urn:nbn:se:uu:diva-251815DOI: 10.1103/PhysRevLett.114.093001ISI: 000350976700008PubMedID: 25793809OAI: oai:DiVA.org:uu-251815DiVA: diva2:808222
Available from: 2015-04-27 Created: 2015-04-24 Last updated: 2015-04-27Bibliographically approved

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Piancastelli, Maria Novella
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Molecular and condensed matter physics
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