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On The Fission Of Charged Alkali-Metal Clusters

Author

Listed:
  • A. RIGO

    (Departament de Física, Universitat de les Illes Balears, E-07071 Palma de Mallorca, Spain)

  • F. GARCIAS

    (Departament de Física, Universitat de les Illes Balears, E-07071 Palma de Mallorca, Spain)

  • J.A. ALONSO

    (Departamento de Física Teórica, Universidad de Valladolid, E-47011 Valladolid, Spain)

  • J.M. LÓPEZ

    (Departamento de Física Teórica, Universidad de Valladolid, E-47011 Valladolid, Spain)

  • M. BARRANCO

    (Departament ECM, Facultat de Física, Diagonal 647, E-08028 Barcelona, Spain)

  • A. MAÑANES

    (Departamento de Física Moderna, Universidad de Cantabria, E-39005 Santander, Spain)

  • J. NÉMETH

    (Institute of Theoretical Physics, Eötvös University, H-1088 Budapest, Hungary)

Abstract

A deformed jellium model is used to calculate the fission barrier height of${\rm{Na}}_{24}^{2+}\to {\rm{Na}}_{21}^+ + {\rm{Na}}_3^+$within the Kohn-Sham density-functional theory (i.e., including shell effects). Although the shape of the barrier obviously depends on the parametrization of the fission path, we have found that the saddle point corresponds to a configuration in which the emerging fragments are already formed and rather well apart. From this result, we offer a simple way to calculate the barrier height for charged trimer emission from alkali-metal clusters of (almost) arbitrarily large size and charge state.

Suggested Citation

  • A. Rigo & F. Garcias & J.A. Alonso & J.M. López & M. Barranco & A. Mañanes & J. Németh, 1996. "On The Fission Of Charged Alkali-Metal Clusters," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 617-621.
  • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x9600111x
    DOI: 10.1142/S0218625X9600111X
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