Crystallization and melting in the Lennard-Jones system: Equilibration, relaxation, and long-time dynamics of the moving interface

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Tepper, H.L. and Briels, W.J. (2001) Crystallization and melting in the Lennard-Jones system: Equilibration, relaxation, and long-time dynamics of the moving interface. Journal of Chemical Physics, 115 (20). pp. 9434-9443. ISSN 0021-9606

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Abstract:Nonequilibrium molecular dynamics simulations have been carried out on the growth and melting of the Lennard-Jones (100) interface at small undercoolings and superheatings. Two regimes of linear growth rate were discovered: a short-time regime associated with interface relaxation and a long-time regime associated with the macroscopic limit of growth and melting. It was shown that, if system sizes or equilibration times are taken too small, one will find only the initial regime. On the basis of our very accurate results on the macroscopic growth rates close to equilibrium, the possibility of a discontinuity in the temperature dependence of growth and melting rates at the melting point was ruled out.
Item Type:Article
Copyright:© 2001 American Institute of Physics
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/59756
Official URL:http://dx.doi.org/10.1063/1.1413972
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Metis ID: 205079