Circularly Polarized X Rays: Another Probe of Ultrafast Molecular Decay Dynamics
Authors:
- Ji-Cai LiuJLJi-Cai Liu
- Andreas LindbladALAndreas Lindblad
- Christophe NicolasCNChristophe Nicolas
- Johan SöderströmJSJohan Söderström
- Victor KimbergVKVictor Kimberg
- Faris Gel’mUkhanovFGFaris Gel’mUkhanov
- Catalin MironCMCatalin Miron
- 30 November 2010
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 105 (23) , 233001
Abstract
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$\rightarrow${}a1g* 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.Keywords
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