title: On the fluctuation mechanism of melting of supported gold nanoclusters.
abstract: 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.
authors: National Research Nuclear University "MEPhl", 31 Kashirskoe Chausse, Moscow 115409, Russia.
authors: M A
authors: MA
authors: Pushkin
authors: V I
authors: VI
authors: Troyan
authors: P V
authors: PV
authors: Borisyuk
authors: V D
authors: VD
authors: Borman
authors: V N
authors: VN
authors: Tronin
mesh_terms: D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D010316:Particle Size; D044366:Transition Temperature
chemical_list: D006046:Gold