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Title: Effect of the vacancy interaction on antiphase domain-growth in a two-dimensional binary alloy
Author: Porta Tena, Marcel
Frontera Beccaria, Carlos
Vives i Santa-Eulàlia, Eduard
Castán i Vidal, Maria Teresa
Keywords: Aliatges binaris
Diagrames de fase
Binary systems (Metallurgy)
Phase diagrams
Issue Date: 1997
Publisher: The American Physical Society
Abstract: 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.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1997, vol. 56, núm. 9, p. 5261-5270
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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