Entropic effects on the structure of Lennard-Jones clusters
Condensed Matter
2007-05-23 v1 Atomic and Molecular Clusters
Abstract
We examine in detail the causes of the structural transitions that occur for those small Lennard-Jones clusters that have a non-icosahedral global minima. Based on the principles learned from these examples we develop a method to construct structural phase diagrams that show in a coarse-grained manner how the equilibrium structure of large clusters depends on both size and temperature. The method can be augmented to account for anharmonicity and quantum effects. Our results illustrate that the vibrational entropy can play a crucial role in determining the equilibrium structure of a cluster.
Keywords
Cite
@article{arxiv.cond-mat/0112018,
title = {Entropic effects on the structure of Lennard-Jones clusters},
author = {Jonathan P. K. Doye and Florent Calvo},
journal= {arXiv preprint arXiv:cond-mat/0112018},
year = {2007}
}
Comments
13 pages, 9 figures