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dc.contributor.authorFrontera Beccaria, Carloscat
dc.contributor.authorVives i Santa-Eulàlia, Eduardcat
dc.contributor.authorCastán i Vidal, Maria Teresacat
dc.contributor.authorPlanes Vila, Antonicat
dc.description.abstractA Monte Carlo study of the late time growth of L12-ordered domains in a fcc A3B binary alloy is presented. The energy of the alloy has been modeled by a nearest-neighbor interaction Ising Hamiltonian. The system exhibits a fourfold degenerated ground state and two kinds of interfaces separating ordered domains: flat and curved antiphase boundaries. Two different dynamics are used in the simulations: the standard atom-atom exchange mechanism and the more realistic vacancy-atom exchange mechanism. The results obtained by both methods are compared. In particular we study the time evolution of the excess energy, the structure factor and the mean distance between walls. In the case of atom-atom exchange mechanism anisotropic growth has been found: two characteristic lengths are needed in order to describe the evolution. Contrarily, with the vacancyatom exchange mechanism scaling with a single length holds. Results are contrasted with existing experiments in Cu3Au and theories for anisotropic growth.eng
dc.publisherThe American Physical Societycat
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i
dc.relation.ispartofPhysical Review B, 1997, vol. 55, núm. 1, p. 212-225cat
dc.rights(c) The American Physical Society, 1997cat
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationAliatges binariscat
dc.subject.classificationPropietats magnètiquescat
dc.subject.classificationMètode de Montecarlocat
dc.subject.otherBinary systems (Metallurgy)eng
dc.subject.otherMagnetic propertieseng
dc.subject.otherMonte Carlo methodeng
dc.titleMonte Carlo Study of the Growth of L12 ordered domains in fcc A3B binary alloyseng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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