Frankfurt 2006 – wissenschaftliches Programm

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MO: Molekülphysik

MO 13: Molecular Clusters I

MO 13.6: Vortrag

Montag, 13. März 2006, 15:15–15:30, H10

Electron-Ion-Coincidence Study of C₆₀ Fragmentation — •Sanja Korica, Axel Reinköster, Jens Viefhaus, Daniel Rolles, Reiner Hentges, Markus Braune, and Uwe Becker — Fritz-Haber-Institut der MPG, Faradayweg 4-6, Berlin, Germany

In order to get a deeper insight in the valence shell photofragmentation dynamics of C₆₀ we have performed photoelectron-photoion coincidence measurements (PEPICO) in this energy region. Our results are supported with the previous non-coincident electron and ion measurements. The measurements were performed at the BW3 beamline of HASYLAB. C₆₀ molecules in the gas phase were ionized by the monochromatic synchrotron radiation and the outgoing electrons and ions were detected with the time-of-flight analysers located opposite to each other. Our results show that the most intense coincidences are between electron and C₆₀^(q+) ions (q=1-3), but also coincidences with the C_60−2m⁽²⁺⁾ ions are clearly discernible. Possible mechanisms for these fragmentation events will be discussed.