DOMAIN GROWTH IN BINARY-MIXTURES AT LOW-TEMPERATURES

被引：52

作者：

LACASTA, AM ^{[1
]}

HERNANDEZMACHADO, A ^{[1
]}

SANCHO, JM ^{[1
]}

TORAL, R ^{[1
]}

机构：

[1] UNIV ILLES BALEARS,DEPT FIS,E-07071 PALMA DE MALLORCA,SPAIN

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.45.5276

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied domain growth during spinodal decomposition at low temperatures. We have performed a numerical integration of the deterministic time-dependent Ginzburg-Landau equation with a variable, concentration-dependent diffusion coefficient. The form of the pair-correlation function and the structure function are independent of temperature but the dynamics is slower at low temperature. A crossover between interfacial diffusion and bulk diffusion mechanisms is observed in the behavior of the characteristic domain size. This effect is explained theoretically in terms of an equation of motion for the interface.

引用

页码：5276 / 5281

页数：6

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