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Ginzburg-Landau theory for the solid-liquid interface of bcc elements. II - Application to the classical one-component plasma, the Wigner crystal, and He-4The previously developed Ginzburg-Landau theory for calculating the crystal-melt interfacial tension of bcc elements to treat the classical one-component plasma (OCP), the charged fermion system, and the Bose crystal. For the OCP, a direct application of the theory of Shih et al. (1987) yields for the surface tension 0.0012(Z-squared e-squared/a-cubed), where Ze is the ionic charge and a is the radius of the ionic sphere. Bose crystal-melt interface is treated by a quantum extension of the classical density-functional theory, using the Feynman formalism to estimate the relevant correlation functions. The theory is applied to the metastable He-4 solid-superfluid interface at T = 0, with a resulting surface tension of 0.085 erg/sq cm, in reasonable agreement with the value extrapolated from the measured surface tension of the bcc solid in the range 1.46-1.76 K. These results suggest that the density-functional approach is a satisfactory mean-field theory for estimating the equilibrium properties of liquid-solid interfaces, given knowledge of the uniform phases.
Document ID
19890052703
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zeng, X. C.
(Ohio State Univ. Columbus, OH, United States)
Stroud, D.
(Ohio State University Columbus, United States)
Date Acquired
August 14, 2013
Publication Date
May 1, 1989
Publication Information
Publication: Physical Review A - General Physics, 3rd Series
Volume: 39
ISSN: 0556-2791
Subject Category
Thermodynamics And Statistical Physics
Accession Number
89A40074
Funding Number(s)
CONTRACT_GRANT: NSF DMR-87-18874
CONTRACT_GRANT: NAG8-483
Distribution Limits
Public
Copyright
Other

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