Abstract
Microcanonical molecular dynamics simulations are used to determine the structures of Ni N (N = 4, 5, 6) clusters and to study the dynamical and structural properties of the Ni 4 cluster. The interaction between the atoms is modeled by an empirical potential. The geometries and the related parameters are compared with the previous literature. The Ni 4 cluster is heated up to 2000 K and during the phase transition a stable isomer of the cluster is observed. The melting temperature of Ni 4 clusters is tried to be determined from the dynamical displays.
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