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arXiv 1607.04067cond-mat.stat-mech
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二维自旋交换模型中的相分离和临界逾渗

Phase separation and critical percolation in bidimensional spin-exchange models

Alessandro Tartaglia, Leticia F. Cugliandolo, Marco Picco

摘要:

在均相中制备的二元混合物,并通过粗化过程淬火成两相区相分离,由此两相的畴随时间增长。自旋交换模型的数值研究表明,这种动力学首先需要一个系统的两个物种的密度相等的临界渗流状态。我们证明了这一说法,我们确定的时间依赖性的增长长度与这一过程的两个阶段的集群的统计和形态学特性的缩放分析。

英文摘要:

Binary mixtures prepared in an homogeneous phase and quenched into a two-phase region phase-separate via a coarsening process whereby domains of the two phases grow in time. With a numerical study of a spin-exchange model we show that this dynamics first takes a system with equal density of the two species to a critical percolation state. We prove this claim and we determine the time-dependence of the growing length associated to this process with the scaling analysis of the statistical and morphological properties of the clusters of the two phases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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