Melting Dynamics of Gold Nanoparticle and Thin Film Riser Fahdiran (a*), Iwan Sugihartono (a), Erfan Handoko (a), Setia Budi (b)
a) Department of Physics, State University of Jakarta, Jalan Rawamangun Muka, Jakarta Timur, 13220, Indonesia
* riser-fahdiran[at]unj.ac.id
b) Department of Chemistry, State University of Jakarta, Jalan Rawamangun Muka, Jakarta Timur, 13220, Indonesia
Abstract
We studied the melting dynamics of Gold in the form of nanoparticle and thin film. The nanoparticle diameter is comparable with the thin film thickness, i.e. 10 nm. The systems are heated from room temperature up to slightly above melting point, Tm = 1400 K. The evolution of the atoms in each system is followed using Molecular Dynamics (MD) scheme up to 20 ps. Thermodynamics analysis indicated that thin film is suppressed by the pressure greater than nanoparticle. Structural analysis compared with Common Neighbor Analysis (CNA) expressed the condition that melting evolution occurred almost in the same time between both cases.
