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Reorientation in random potential: A Model for glasslike dynamics in confined liquid crystals

被引：25
作者：
Copic, M
Mertelj, A
机构：
[1] Jozef Stefan Inst, Ljubljana 1001, Slovenia
[2] Univ Ljubljana, Dept Phys, Ljubljana 1000, Slovenia
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.80.1449
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dynamical behavior of polymer dispersed nematic liquid crystals was studied by quasielastic light scattering. In addition to fast intradroplet orientational fluctuations a slow stretched exponential relaxation with a stretching exponent s similar to 0.2 was observed. This process is modeled with a reorientation of the average director of the droplets in a random potential. The model can be used to describe the glasslike dynamics in similar systems, for example, in silica aerogel filled with liquid crystals.
引用
收藏
页码：1449 / 1452
页数：4
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