clusters in the size range N= 7–33. Detailed investigations have been conducted on the
portions of the caloric curves in which the transition between rigid and nonrigid behavior
occurs, to study the N dependence of the solid–liquid phase change. Clusters of several
sizes display a coexistence of forms, each with a characteristic mean temperature, over a
well‐defined energy range in the transition region, as had been observed for the Ar13 …