Calculations of Crystal-Melt Interfacial Free Energies by Nonequilibrium Work Measurements

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2006-01-01
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Mu, Yan
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Chemistry

The Department of Chemistry seeks to provide students with a foundation in the fundamentals and application of chemical theories and processes of the lab. Thus prepared they me pursue careers as teachers, industry supervisors, or research chemists in a variety of domains (governmental, academic, etc).

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The Department of Chemistry was founded in 1880.

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We developed a multistep thermodynamicperturbation method to compute the interfacial free energies by nonequilibrium work measurements with cleaving potential procedure. Using this method, we calculated the interfacial free energies of different crystal orientations for the Lennard-Jones system. Our results are in good agreement with the results by thermodynamic integration method. Compared with thermodynamic integration method, the multistep thermodynamicperturbation method is more efficient. For each stage of the cleaving process, only a few thermodynamic perturbation steps are needed, and there is no requirement on the reversibility of the path.

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The following article appeared in Journal of Chemical Physics 124 (2006): 034712, and may be found at doi:10.1063/1.2159474.

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Sun Jan 01 00:00:00 UTC 2006
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