Colloids on free-standing smectic films

被引：0
|
作者：
M. Conradi
P. Ziherl
A. Šarlah
I. Muševič
机构：
[1] Jožef Stefan Institute,Department of Physics
[2] University of Ljubljana,undefined
来源：
The European Physical Journal E | 2006年 / 20卷
关键词：
61.30.Hn Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions; 68.08.Bc Wetting; 82.70.Dd Colloids;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study the structure of a free-standing smectic-A film around a micron-size polystyrene colloid adsorbed onto the film. We find that a colloid or a cluster of colloids is surrounded by an optically distinct and radially decorated meniscus ending with a sharp edge. The observed strong and finite-range attraction between the adsorbed colloids is driven by the fusion of menisci. We interpret the structure of the smectic meniscus in terms of a model dominated by the surface free energy and we argue that the characteristic appearance of the meniscus is due to layer undulations.
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页码：231 / 236
页数：5
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