Velocity versus temperature relation for solidification and melting of silicon: A molecular-dynamics study

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Abstract
We report on molecular-dynamics simulations to determine the steady-state velocity versus temperature relation for (001) solidification and melting of silicon using the Stillinger-Weber potential to model the interactions between the silicon atoms. Down to 250 K of undercooling, the simulation values show good agreement with experimental results. The slope of the temperature velocity relation near the melting point is reported as (-15±5 K)/(m/s) whereas we find the slope of the transition-state curve that we fitted to the simulation values has a slope (-9.8 K)/(m/s) at the melting point.