Surface modes and ordered patterns during spinodal decomposition of an ABv model alloy

被引：34

作者：

Plapp, M

Gouyet, JF

机构：

[1] Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, Palaiseau

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.78.4970

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a lattice gas model for a binary alloy with vacancies by means of a mean-field kinetic equation, Simulations of droplets of unstable mixture immersed in a stable vapor show the emergence of ordered structures at the surface which propagate into the bulk. We calculate characteristic wavelengths and propagation velocities of these patterns by a linear stability analysis. The thickness of the ordered layer depends on the model parameters and the strength of the initial noise.

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页码：4970 / 4973

页数：4

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