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The favoured cluster structures of model glass formers

Jonathan P. K. Doye, David J. Wales, Fredrik H. M. Zetterling and Mikhail Dzugutov

J. Chem. Phys. 118, 2792-2799 (2002)

Abstract

We examine the favoured cluster structures for two new potentials, which both behave as monatomic model glass-formers in bulk. We find that the oscillations in the potential lead to global minima that are non-compact arrangements of linked 13-atom icosahedra. We find that the structural properties of the clusters correlate with the glass-forming propensities of the potentials, and with the fragilities of the corresponding supercooled liquids.


The full paper is available from JCP Online and the Los Alamos preprint server (and mirrors: UK, France, Germany).
See also the entry for Z1 and Z2 clusters in the Cambridge Cluster Database.