Melting Point and Lattice Parameter Shifts in Supported Metal Nanoclusters

Details Melting Point and Lattice Parameter Shifts in Supported Metal Nanoclusters Melting Point and Lattice Parameter Shifts in Supported Metal Nanoclusters

2008-06-24

arxiv.org/abs/0806.3841v3

Physics

Condensed Matter

Materials Science

6 pages, 3 figures, 1 table

Scientific paper

The dependencies of the melting point and the lattice parameter of supported metal nanoclusters as functions of clusters height are theoretically investigated in the framework of the uniform approach. The vacancy mechanism describing the melting point and the lattice parameter shifts in nanoclusters with decrease of their size is proposed. It is shown that under the high vacuum conditions (p<10^-7 torr) the essential role in clusters melting point and lattice parameter shifts is played by the van der Waals forces of cluster-substrate interation. The proposed model satisfactorily accounts for the experimental data.

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