Cluster-cluster collisions. III. Potential energy between clusters

The intercluster potential for the systems Na 8 + Na 8, Na 9 + Na 9, Na 19 + Na 19 and Na 20 + Na 20 and the fragmentation potentials of Na 40, Na 58, Na 68 and Na 92 are calculated on the basis of density functional theory in the local density approximation and the jellium model. From the fragmenta...

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Bibliographic Details
Published in:Physics letters. A 1993-12, Vol.183 (4), p.332-337
Main Authors: Knospe, O., Schmidt, R., Engel, E., Schmitt, U.R., Dreizler, R.M., Lutz, H.O.
Format: Article
Language:English
Subjects:
Atomic and molecular clusters
Atomic and molecular physics
Exact sciences and technology
Physics
Studies of special atoms, molecules and their ions
clusters
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Summary:The intercluster potential for the systems Na 8 + Na 8, Na 9 + Na 9, Na 19 + Na 19 and Na 20 + Na 20 and the fragmentation potentials of Na 40, Na 58, Na 68 and Na 92 are calculated on the basis of density functional theory in the local density approximation and the jellium model. From the fragmentation potentials as a function of mass asymmetry a rich variety of final size distributions of the product in cluster-cluster collisions is predicted, originating from amplification and annihilation of shell closing effects. Shell effects are also found to dominate the intercluster potentials as a function of the intercluster distance. The proximity theorem is, however, found to be satisfied for metallic clusters.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(93)90466-D