PATTERN-FORMATION AT THE TRAVELING LIQUID-CRYSTAL TWIST-GRAIN-BOUNDARY-SMECTIC-A INTERFACE

被引：13
作者：
CLADIS, PE
SLANEY, AJ
GOODBY, JW
BRAND, HR
机构：
[1] UNIV HULL,SCH CHEM,KINGSTON HULL HU6 7RX,N HUMBERSIDE,ENGLAND
[2] UNIV BAYREUTH,D-95540 BAYREUTH,GERMANY
来源：
PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 02期
关键词：
D O I：
10.1103/PhysRevLett.72.226
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The different patterns observed at a twist-grain-boundary- (TGB(A-)) smectic-A (A) interface moving in a temperature gradient are quantified by measuring interface arclength scaling between two lengths characterizing these patterns. The ragged melting TGB(A)-A interface results from the growth of TGB(A) filaments into oriented A. We attribute the destruction of TGB(A) when A grows into TGB(A) to the second-order nature of the TGB(A)-cholesteric transition. These results are interpreted within a defect lattice model.
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页码：226 / 229
页数：4
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