UVSOR Lunch Seminar (2004-11)

Date&Time: February 24, 12:00-12:35
Place: UVSOR Build. #304 (User's room)

Speaker: Dr. Ioana BRADEANU

Affiliation: Wuerzburg University, Germany

Title: Post collision interaction in free van der Waals clusters


Abstract: Post collision interaction (PCI) in free krypton clusters is
investigated for the Kr 3d photoelectron spectra measured at UVSOR.
The size regime of the clusters is smaller than 30.
It is found that the peak shapes of the 3d ionization becomes asymmetric
in the atom and in clusters, but the line shape of the dimer and
different surface sites are less asymmetric than the atomic lines
at a given photon energy. This behavior is rationalized using
a classical model of PCI. The experimental results are compared
to previous work on condensed rare gases, indicating that a similar
behavior is observed.