Wetting phenomena in bcc binary alloys

R. Leidl; A. Drewitz; H. W. Diehl

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arXiv · cond-mat/9704215

Wetting phenomena in bcc binary alloys

R. Leidl·A. Drewitz·H. W. Diehl

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Abstract

We study the influence of the surface orientation on the wetting behavior of bcc binary alloys, using a semi-infinite lattice model equivalent to a nearest-neighbor Ising antiferromagnet in an external field. The salient feature of the model is the generation of an ``effective'' ordering surface field for symmetry-breaking surface orientations like (100). Such a field couples to the local order parameter at the surface and leads to the occurrence of wetting phenomena below the critical temperature T_c. Utilizing a Ginzburg-Landau continuum model which has been derived earlier from the lattice mean-field theory, the wetting phase diagram is calculated.

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R. Leidl, A. Drewitz, H. W. Diehl. 1997-06-20. Wetting phenomena in bcc binary alloys. https://arxiv.org/abs/cond-mat/9704215

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