Enrichment and segregation in alkali heteroclusters

  • M. J. López
  • A. Mañanes
  • J. A. Alonso
  • M. P. Iñiguez
Conference paper

Abstract

A spherical average pseudopotential method (SAPS) is used to investigate some properties of compound alkali clusters. The effect that the substitution of a Sodium atom by a Lithium atom in a Nan cluster has on the stabilities and geometries is studied for n ≤ 21. We have found that substitution is always energetically possible. On the other hand equiatomic Na n Cs n clusters are considered in the size range n ≤ 16. We find a strong segregation effect of the Cesium atoms towards the cluster surface. This agrees with what happens in liquid Na x Cs1−x alloys.

PACS

31.20 36.40 

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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • M. J. López
    • 1
  • A. Mañanes
    • 1
  • J. A. Alonso
    • 1
  • M. P. Iñiguez
    • 1
  1. 1.Departamento de Fisica TeóricaUniversidad de ValladolidValladolidSpain

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