Pseudo-casimir structural force drives spinodal dewetting in nematic liquid crystals

Pseudo-casimir structural force drives spinodal dewetting in nematic liquid crystals
复制标题

伪卡西米尔结构力驱动向列液晶中的旋节线反润湿

DOI:
10.1103/physrevlett.84.1228
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发表时间:
2000
影响因子:
8.6
通讯作者:
Zumer,S
Zumer,S
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Ziherl,P;Podgornik,R;Zumer,S

文献摘要

相似文献

我们从理论上分析了薄膜中的涨落诱导力受到竞争表面相互作用,我们发现,该力是吸引力在小距离和排斥,否则。结果提供了一个一致的解释,最近的研究5CB在硅片上的旋节线去湿[F。Vandenbrouck等人,物理学评论快报82,2693(1999)],这意味着该实验可以被认为是液晶中伪Casimir效应的第一次观察。
We analyze theoretically the fluctuation-induced force in thin nematic films subject to competing surface interactions, and we find that the force is attractive at small distances and repulsive otherwise. The results provide a consistent interpretation of a recent study of spinodal dewetting of 5CB on a silicon wafer [F. Vandenbrouck et al., Phys. Rev. Lett. 82, 2693 (1999)], implying that this experiment can be regarded as the first observation of the pseudo-Casimir effect in liquid crystals.