Abstract
AbstractWhereas in the case of liquids the theories on the dependence of the surface energy on the particle size are uniform in general, describing a decrease of σ with decreasing particle size, in the case of small solid particles also a dependence with the inverse sign has been assumed in the literature.Equations of the size dependence of σ and γ are derived for icosahedral and cuboctahedral clusters of noble gases considering interactions only with next neighbours. It will be shown that the character of the size dependence is dominated by the choice of the position of the dividing surface. Compared to that, such equations are derived also for ion crystallites. The resulting differences can be explained by the differences in structure and bonding.
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