Universal shapes of fermion clusters in the local density approximation |
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Authors: | J Kolehmainen M Koskinen H Häkkinen M Manninen S Reimann |
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Institution: | 1. Department of Physics, University of Jyv?skyl?, P.O. Box 35, FIN-40351, Jyv?skyl?, Finland 2. Niels Bohr Institute, DK-2100, Copenhagen, Denmark
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Abstract: | Using the density functional Kohn-Sham method we show that the internal shapes of fermion clusters are nearly independent
of the interparticle interactions. The odd-even staggering of the total energy of small nuclei and of sodium clusters are
shown to be of the same origin. Tetrahedral deformations are predicted for 40, 70 and 112 atom sodium clusters. An alternative
model for linear nuclei is suggested.
Presented by M. Manninen at the International Conference on “Atomic Nuclei and Metallic Clusters”, Prague, September 1–5,
1997. |
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