Abstract

A model for the dependence of the melting tem- perature of nanocrystals on the size of carbon nanotubes is developed. The model is applied to investigate the nano- tube size-dependent melting of TaC and Pb single crystals encapsulated in carbon nanotubes. It is shown that the melt- ing temperature for these single crystals in carbon nanotubes can be strongly suppressed. The results also imply that nano- tubes may provide an effective means for investigating the supercooled state of liquids and the liquid-glass transition.

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