Abstract

Molecular dynamics simulation of the morphology and the phonon propagation in fine particles of copper has been conducted. The particle model consisted of 2457 atoms. The EAM potential is adopted for the interaction between atoms. A stable atomic configuration of the fine particle is obtained by cooling the system slowly. The surface morphology of the particles are visualized by selecting the surface atoms through the potential energy of the individual atoms. Vibrational spectra of the atoms near the center and the surface are calculated by FFT. The phonon propagation in the particle is investigated by monitoring the spatial distribution of the kinetic energy.

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