Heterogeneous crystal nucleation: The effect of lattice mismatch

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Abstract

A simple dynamical density functional theory is used to investigate freezing of an undercooled liquid in the presence of a crystalline substrate. We find that the adsorption of the crystalline phase on the substrate, the contact angle, and the height of the nucleation barrier are nonmonotonic functions of the lattice constant of the substrate. We show that the free-growth-limited model of particle-induced freezing by Greer et al. is valid for larger nanoparticles and a small anisotropy of the interface free energy. Faceting due to the small size of the foreign particle or a high anisotropy decouples free growth from the critical size of homogeneous nuclei.

Original languageEnglish
Article number025502
JournalPhysical review letters
Volume108
Issue number2
DOIs
Publication statusPublished - Jan 11 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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