Abstract

Bulk and surface nucleation of the order-disorder transition in have been studied using a lattice version of density functional theory. The surface transitions at three different surfaces, (001), (011), and (111), are discussed. The surface-induced disorder transition does not occur at the (001) surface even when the surface transition is continuous and the bulk is discontinuous if only nearest-neighbour interactions are included. The results for the nucleation rates are compared with experiment.

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