Behavior of the director reorientation time in glass surfaces of lyotropic liquid crystals in the nematic to biaxial transition

被引：19
|
作者：
Turchiello, RD
Oliveira, EA
机构：
[1] Instituto de Física, Universidade de São Paulo, São Paulo, 05389-970
来源：
PHYSICAL REVIEW E | 1996年 / 54卷 / 02期
关键词：
D O I：
10.1103/PhysRevE.54.1618
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The surface reorientation process of a lyotropic liquid crystal is investigated in the calamitic (N-c) and biaxial (N-bx) nematic phases. It is observed that the surface reorientation process is faster in the biaxial phase and the characteristic time of this process tau(s) increases linearly with increasing temperatures, in both nematic phases. The results obtained are discussed and compared to the predictions of a model assuming the gliding of the director at the boundary surfaces.
引用
收藏
页码：1618 / 1624
页数：7
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