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dc.contributor.authorNagatani, Takashicat
dc.contributor.authorSagués i Mestre, Francesccat
dc.description.abstractA diffusion-limited-aggregation (DLA) model with two immiscible components (A and B atoms) is presented to investigate a phase transition in morphological changes. A segregation occurs where the DLA pattern is constructed by a mixture of trees consisting of only A atoms and trees consisting of only B atoms. Above a critical concentration p c , trees with only A atoms exceed trees with only B atoms, and the DLA with only A atoms dominates. It is found that a phase transiton between A-DLA and B-DLA occurs at the critical concentration p c , where A-DLA and B-DLA represent, respectively, DLA with only A atoms and DLA with only B atoms. The phase transition is analyzed by making use of the real-space renormalization-group method. The correlation length ξ scales as ξ≊(p- p c ) − ν , where p c =0.5 and ν=1.85 on the square lattice-
dc.publisherThe American Physical Societycat
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i
dc.relation.ispartofPhysical Review A, 1991, vol. 44, núm. 10, p.
dc.rights(c) The American Physical Society, 1991cat
dc.sourceArticles publicats en revistes (Ciència dels Materials i Química Física)-
dc.subject.classificationFluctuacions (Física)cat
dc.subject.otherFluctuations (Physics)eng
dc.titlePhase transition in diffusion-limited aggregation with two immiscible componentseng
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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