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Effect of the vacancy interaction on antiphase domain-growth in a two-dimensional binary alloy

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The influence of diffusing vacancies on the antiphase domain growth process in a binary alloy is studied by Monte Carlo simulations. The system is modelled by means of a Blume-Emery-Griffiths hamiltonian with a biquadratic coupling parameter K controlling the microscopic interactions between vacancies. We obtain that, independently of K, the vacancies exhibit a tendency to concentrate on the antiphase boundaries. This gives rise to an effective interactions between movin interfaces and diffusing vacancies which strongly influences the domain growth process. One distinguishes three different behaviours: i) for K 1 the growth is slown down but still curvature driven.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.56.5261

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Effect of the vacancy interaction on antiphase domain-growth in a two-dimensional binary alloy