INTERFACE TENSIONS OF BINARY SYSTEMS

Gernot Münster
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Gernot Münster: Institut für Theoretische Physik I, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Sir. 9, D-4400 Münster, Germany

International Journal of Modern Physics C (IJMPC), 1992, vol. 03, issue 05, 879-887

Abstract: In liquid mixtures or analogous binary systems at low temperatures the pure phases may coexist, separated by an interface. The interface tension vanishes according toσ=σ0(1−T/Tc)µas the temperatureTapproaches the critical point from below. Similarly the correlation length diverges asξ=ξ0(T/Tc−1)−ν. For three-dimensional systems the dimensionless productR=σ0(ξ0)2is universal. This and related universal quantities are investigated by means of a semiclassical expansion in the framework ofΦ4theory, as well as by Monte Carlo calculations in the three-dimensional Ising model.

Keywords: Interface tension; Critical phenomena; Field theory; Ising model (search for similar items in EconPapers)
Date: 1992
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DOI: 10.1142/S0129183192000543

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