Identifying structural patterns in `disordered' metal clusters

Details Identifying structural patterns in `disordered' metal clusters Identifying structural patterns in `disordered' metal clusters

2003-06-09

arxiv.org/abs/cond-mat/0306225v1

Phys. Rev. B 68, 195418 (2003)

Physics

Condensed Matter

12 pages; 5 figures

Scientific paper

10.1103/PhysRevB.68.195418

Zinc and cadmium clusters interacting with a Gupta potential have previously been identified as prototypical metallic systems that exhibiting disordered cluster structures. Here, putative global minima of the potential energy have been located for these clusters for all sizes up to N<125. Although none of the usual structural forms are lowest in energy and many of the clusters have no overall order, strong structural preferences have been identified.Many of the clusters are based on distorted oblate Marks decahedra, where the distortion involves the bringing together of atoms on either side of a re-entrant groove of the Marks decahedron.

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