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Hard-X-Ray-Induced Multistep Ultrafast Dissociation
Univ Paris 06, Univ Paris 04, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France..
Univ Paris 06, Univ Paris 04, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France..
Univ Paris 06, Univ Paris 04, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France..
Univ Oulu, Ctr Mol Mat Res, POB 3000, Oulu 90014, Finland..ORCID iD: 0000-0002-4032-3125
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2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 116, no 21, article id 213001Article in journal (Refereed) Published
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Abstract [en]

Creation of deep core holes with very short (tau <= 1 fs) lifetimes triggers a chain of relaxation events leading to extensive nuclear dynamics on a few-femtosecond time scale. Here we demonstrate a general multistep ultrafast dissociation on an example of HCl following Cl 1s -> sigma* excitation. Intermediate states with one or multiple holes in the shallower core electron shells are generated in the course of the decay cascades. The repulsive character and large gradients of the potential energy surfaces of these intermediates enable ultrafast fragmentation after the absorption of a hard x-ray photon.

Place, publisher, year, edition, pages
2016. Vol. 116, no 21, article id 213001
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Condensed Matter Physics
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URN: urn:nbn:se:uu:diva-298895DOI: 10.1103/PhysRevLett.116.213001ISI: 000376628800001PubMedID: 27284654OAI: oai:DiVA.org:uu-298895DiVA, id: diva2:948560
Available from: 2016-07-12 Created: 2016-07-12 Last updated: 2017-11-28Bibliographically approved

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Jankala, KariPiancastelli, Maria Novella

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