Theory Department
Max Planck Institute of Microstructure Physics
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Kidun, O. and Berakdar, J.

On the role of screening in metallic clusters
Many Particle Spectroscopy of Atoms, Molecules, Clusters, and Surfacespp 395-403 (Eds.) Berakdar, J. and Kirschner, J.,Kluwer Academic/Plenum Publishers, New York, USA 2001
This work aims at visualizing the role of the inelastic electron-electron relaxation time in metal clusters. We develop a quantum mechanical model for the description of inelastic electronic collisions from metal clusters and apply it to the ionization of C60 by low-energy electrons. The results show evidently that the measured spectrum for the production of C60+ depends strongly on the screening of the electron-electron collisions. The value of the screening length we obtain is in accord with previous studies on the relaxation in metal clusters.

TH-2001-15