Dynamic and correlation properties of solid supported smectic-A films -: art. no. 061701

被引：29
|
作者：
Romanov, VP [1 ]
Ul'yanov, SV
机构：
[1] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia
[2] Inst Commerce & Econ, St Petersburg 194018, Russia
来源：
PHYSICAL REVIEW E | 2002年 / 66卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.66.061701
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：
Dynamic properties and layer displacement-layer displacement correlation functions of the smectic-A films on a substrate are investigated. The eigenfrequencies spectrum and eigenmotions of the film are calculated within the framework of a discrete model. It was found that the static as well as dynamic properties of freely standing and solid supported smectic-A films differ significantly. In particular, the acoustic mode is absent in the films on a substrate and the surface tension is not essential for the film dynamics. The correlation length of the spatial layer displacement correlation functions is finite for films on a substrate in contrast to the free standing films. An effect of thermal fluctuations on the specular and diffuse x-ray scattering was analyzed.
引用
收藏
页码：9 / 061701
页数：9
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