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Triaxial shapes of sodium clusters

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

A modified Nilsson-Clemenger model is combined with Strutinsky's shell correction method. For spherical clusters, the model potential is fitted to the single-particle spectra obtained from selfconsistent Kohn-Sham calculations. The deformation energy surfaces of sodium clusters with sizes of up toN=270 atoms are calculated for a combination of triaxial, quadrupole and hexadecapole deformations. The ground state shapes and energies are determined by simultaneous minimization with respect to the three shape parameters. A significant fraction of the clusters is predicted to be triaxial. The deviations from the axial shape do not generate any systematic odd-even staggering of the binding energies.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Regensburg, Universitätsstrasse 31, D-93040, Regensburg, Germany

    S. M. Reimann & M. Brack

  2. Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf e.V., Postfach 510119, D-01314, Dresden, Germany

    S. Frauendorf

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  1. S. M. Reimann
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  2. S. Frauendorf
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  3. M. Brack
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Reimann, S.M., Frauendorf, S. & Brack, M. Triaxial shapes of sodium clusters. Z Phys D - Atoms, Molecules and Clusters 34, 125–134 (1995). https://doi.org/10.1007/BF01439387

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  • DOI: https://doi.org/10.1007/BF01439387

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