A Theoretical Study of the Hard-Sphere Fluid-Solid Interface II. Test of an Alternative Variational Form

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Abstract
We examine the hard-sphere fluid-solid interface using a form for the inhomogeneous density that differs significantly from those in our previous paper. As before, our approach avoids the square-gradient approximation. We present results for the [111] interface which qualitatively support our earlier findings. While the new density profile closely resembles those observed in computer simulations of Lennard-Jones systems, the surface free energy calculated from this an satz is almost 2.5 times as large as the earlier estimates.