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Shapes And Free Energies Of Molten Sodium Clusters

Author

Listed:
  • S. FRAUENDORF

    (Institute for Nuclear and Hadronic Physics, Research Center Rossendorf Inc., PB 51 01 19, D-01314 Dresden, Germany)

  • V.V. PASHKEVICH

    (Laboratory for Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russian Federation)

Abstract

The shell-correction method is formulated to calculate the shapes and free energies of hot alkali clusters. The equilibrium shapes of Na clusters with mass 50–700 are calculated by minimizing simultaneously with respect to two deformation parameters. ForT=700°Kstrong deviations from spheroidal shape including reflection asymmetric shapes are found to survive in the center of the open shells. The second derivative of calculated free energy correlates with the derivative of the experimental cluster abundances, showing prominent spikes related to the change between spherical and deformed shape.

Suggested Citation

  • S. Frauendorf & V.V. Pashkevich, 1996. "Shapes And Free Energies Of Molten Sodium Clusters," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 241-245.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000474
    DOI: 10.1142/S0218625X96000474
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