Molecular Dynamics Simulation Study on the Melting of Ultra-thin Copper Nanowires

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We have investigated the melting behavior of ultra-thin copper nanowires using classical molecular dynamics simulations. The caloric curves of cylindrical multi-shell copper nanowires showed an insight into the specific phase transition. The melting temperature of copper nanowires is linearly proportional with the number of atoms per layer. When nanowires have almost the same number of atoms per layer regardless of the initial structures, the melting temperatures of nanowires are much the same.