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Magic Pore Dynamics in Weakly Interacting Clusters

Process of relaxation of Lennard-Jones cluster with an intrinsic pore was investigated by molecular dynamics method for different phase states of an initial cluster. Strong dependence of pore relaxation character on the initial cluster phase state was demonstrated. It was shown that, for the initially solid cluster, the system can reach metastable state where pore radius is fixed at one of the discrete set of values. These values do not depend on initial cluster temperature and size. Thus, it was demonstrated that, in a wide range of cluster sizes, inside solid clusters "magic" pores can stabilize forming a metastable state.