Hard-X-Ray-Induced Multistep Ultrafast Dissociation
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 116, no 21, 213001Article in journal (Refereed) PublishedText
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, 213001
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-298895DOI: 10.1103/PhysRevLett.116.213001ISI: 000376628800001PubMedID: 27284654OAI: oai:DiVA.org:uu-298895DiVA: diva2:948560