MORPHOLOGY TRANSITIONS IN A MEAN-FIELD MODEL OF DIFFUSION-LIMITED GROWTH

被引：14
|
作者：
TU, YH
LEVINE, H
RIDGWAY, D
机构：
[1] UNIV CALIF SAN DIEGO,DEPT PHYS,LA JOLLA,CA 92093
[2] UNIV CALIF SAN DIEGO,INST NONLINEAR SCI,LA JOLLA,CA 92093
来源：
PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.71.3838
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study a recently proposed mean-field theory relevant for diffusion-limited growth at finite under-cooling. This theory exhibits a morphology transition from convex patterns, typical of the dense-branching morphology envelope, to concave ones, typical of the dendritic morphology envelope. This transition occurs as the undercooling is lowered at fixed anisotropy, but does not involve any discontinuous behavior of growth velocity.
引用
收藏
页码：3838 / 3841
页数：4
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