Electron impact detachment of small negative clusters

D. Zajfman*, O. Heber, A. Diner, P. Witte, D. Strasser, Y. Toker, M. L. Rappaport, I. Ben-Itzhak, O. Guliamov, L. Kronik, D. Schwalm, A. Wolf

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Results for electron impact detachment of internally cold C n- and Aln- clusters are presented. The experiments were performed using an electrostatic ion beam trap fitted with an internal electron target. The measured electron impact detachment cross sections for the Cn- (n=1-9) clusters exhibit an even-odd oscillation, which is in agreement with the familiar even-odd variation in the binding energy, namely higher cross section for weaker binding. However, the cross sections increase on average with the cluster size, in spite of the average increase in the binding energy. We suggest, based on the data and on preliminary calculations, that the size dependent polarizability is the cause of this effect.

Original languageAmerican English
Pages (from-to)173-181
Number of pages9
JournalInstitute of Physics Conference Series
StatePublished - 2005
Externally publishedYes
EventProceedings of the International Conference on Electron and Photon Impact Ionization and Related Topics 2004 - Louvain-la-Neuve, Belgium
Duration: 1 Jul 20043 Jul 2004


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