EVOLUTION OF DISORDER IN 2-DIMENSIONAL STRIPE PATTERNS - SMECTIC INSTABILITIES AND DISCLINATION UNBINDING

被引：87
作者：
SEUL, M
WOLFE, R
机构：
[1] AT and T Bell Laboratories, Murray Hill
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.68.2460
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A combination of video polarization microscopy and extensive digital line pattern analysis has been invoked to examine in quantitative detail the transformation of a lamellar into a "labyrinthine" magnetic-stripe domain pattern. The evolution of disorder is found to be mediated by a sequence of transverse, "smectic" instabilities culminating in the generation of disclination dipoles. Their subsequent continuous "unbinding" facilitates the formation of a globally isotropic nonequilibrium pattern adopting the topology of a binary tree and displaying a well-defined morphology with a motif in the form of oblong, polygonal clusters of linear-stripe segments.
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页码：2460 / 2463
页数：4
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