Calculations of crystal-melt interfacial free energies by nonequilibrium work measurements | Zendy

Yan Mu | Zendy; Xueyu Song | Zendy

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Calculations of crystal-melt interfacial free energies by nonequilibrium work measurements

Author(s) -

Yan Mu,

Xueyu Song

Publication year - 2006

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.2159474

Subject(s) - non equilibrium thermodynamics , thermodynamic integration , work (physics) , perturbation (astronomy) , thermodynamics , thermodynamic process , perturbation theory (quantum mechanics) , chemistry , physics , material properties , molecular dynamics , computational chemistry , quantum mechanics

We developed a multistep thermodynamic perturbation 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 thermodynamic perturbation 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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