Statistical mechanics of the line tension

C. Varea and A. Robledo

Physica A: Statistical Mechanics and its Applications, 1992, vol. 183, issue 1, 12-24

Abstract: We investigate the properties of the line, say the x-axis, at which two or more interfaces meet, and derive an exact expression for its excess free energy in terms of the gradients of the densities ϱa = ϱa(y,z) and the direct correlation function C(2)ab(|x−x'|; y, y'; z, z'). We evaluate the line tension τ in mean field and for various surface enhancements g at vanishing substrate field h1, and include the interesting case when the line inhomogeneity persists beyond bulk criticality. The critical index for τ is determined for different surface criticalities.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:183:y:1992:i:1:p:12-24

DOI: 10.1016/0378-4371(92)90175-P

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