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Direct Calculation of Solid–Liquid Interfacial Free Energy for Molecular Systems: TIP4P Ice–Water Interface

By Richard Handel, Ruslan L. Davidchack, Jamshed Anwar and Andrey Brukhno

Abstract

By extending the cleaving method of Broughton and Gilmer [J. Chem. Phys. 84, 5759 (1986)]\ud to molecular systems we perform direct calculations of the ice Ih–water interfacial free energy at\ud ambient pressure for the TIP4P model. The values for the basal, prism, and {11¯20} faces of ice\ud Ih are determined to be 23.3 ± 0.8mJm−2, 23.6 ± 1.0mJm−2, and 24.7 ± 0.8mJm−2, respectively.\ud The closeness of these values implies a minimal role of thermodynamic factors in determining the\ud anisotropic behaviour observed during ice nucleation. These results are about 20% lower than the\ud best experimentally–based estimates. However, we observe a larger discrepancy in the Turnbull\ud coefficient, which is about 50% higher than for real water, indicating a possible limitation of the\ud TIP4P model in describing the freezing transition

Publisher: American Physical Society
Year: 2008
DOI identifier: 10.1103/PhysRevLett.100.036104
OAI identifier: oai:lra.le.ac.uk:2381/8479
Journal:

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