Close packing of clusters: Application to
- 15 December 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 68 (23), 235412
- https://doi.org/10.1103/physrevb.68.235412
Abstract
The lowest-energy configurations of close-packed clusters up to atoms with stacking faults are studied using the Monte Carlo method with a Metropolis algorithm. Two types of contact interactions, a pair-potential and a many-atom interaction, are used. Enhanced stability is shown for 26, 38, 50, 59, 61, 68, 75, 79, 86, 100, and 102, of which only the sizes 38, 75, 79, 86, and 102 are pure fcc clusters, the others having stacking faults. A connection between the model potential and density functional calculations is studied in the case of The density functional calculations are consistent with the experimental fact that there exist epitaxially grown fcc clusters starting from relatively small cluster sizes. Calculations also show that several other close-packed motifs exist with comparable total energies.
Keywords
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