I.S. Zimulin, S.L. Gafner

The processes of melting and crystallization of Pt and Pd nanoclusters with radiuses from 0,8 to 5,0 nm are studied by the method of molecular dynamics. A peculiarity of the phase transition is its smearing over a certain temperature region where the coexistence of liquid and solid phases is possible. Nevertheless, for small size Pt (Pd) clusters the smearing region width tends to zero. Some thermodynamic characteristics of Pt and Pd clusters near the solid-liquid phase transition are investigated as well. The results obtained give evidence.