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The favoured cluster structures of model glass formersJonathan P. K. Doye, David J. Wales, Fredrik H. M. Zetterling and Mikhail DzugutovJ. Chem. Phys. 118, 2792-2799 (2002)AbstractWe 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. See also the entry for Z1 and Z2 clusters in the Cambridge Cluster Database. |