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Circularly Polarized X Rays: Another Probe of Ultrafast Molecular Decay Dynamics
KTH, School of Biotechnology (BIO), Theoretical Chemistry (closed 20110512).
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2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 23, 233001- p.Article in journal (Refereed) Published
Abstract [en]

Dissociative nuclear motion in core-excited molecular states leads to a splitting of the fragment Auger lines: the Auger-Doppler effect. We present here for the first time experimental evidence for an Auger-Doppler effect following F1s -> a(1g)* inner-shell excitation by circularly polarized x rays in SF6. In spite of a uniform distribution of the dissociating S-F bonds near the polarization plane of the light, the intersection between the subpopulation of molecules selected by the core excitation with the cone of dissociation induces a strong anisotropy in the distribution of the S-F bonds that contributes to the scattering profile measured in the polarization plane.

Place, publisher, year, edition, pages
2010. Vol. 105, no 23, 233001- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-31307DOI: 10.1103/PhysRevLett.105.233001ISI: 000286732400011ScopusID: 2-s2.0-78649739199OAI: diva2:404872
Swedish Research Council
QC 20110318Available from: 2011-03-18 Created: 2011-03-14 Last updated: 2016-10-13Bibliographically approved

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Liu, Ji-CaiKimberg, VictorGel'mukhanov, Faris
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