On the Fluctuation Mechanism of Melting of Supported Gold Nanoclusters
The size dependence of the melting temperature of Au nanoclusters deposited on SiO2 and HOPG substrates, measured by the elastic-peak electron spectroscopy (EPES) is discussed. The observed behavior of the melting temperature with decrease in clusters’ size is qualitatively
explained in the framework of the fluctuation mechanism for surface melting. The interaction of nanoclusters with substrate is taken into account by means of the effective surface tension for spherical-segment shaped particles, corresponding to the contact angle of supported nanocluster.
Document Type: Research Article
Publication date: 01 November 2012
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