Wetting transition and divergence of the extrapolation length near the nematic-isotropic transition

被引：38

作者：

Vandenbrouck, F ^{[1
]}

Bardon, S ^{[1
]}

Valignat, MP ^{[1
]}

Cazabat, AM ^{[1
]}

机构：

[1] Coll France, CNRS, URA 792, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.81.610

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an investigation of the wetting behavior of 5CB drops on silicon wafers. Nematic drops exhibit a characteristic mesoscopic thickness that diverges as the nematic-isotropic transition is approached. This divergence may be associated with the vanishing of the anchoring strength, or equivalently, to a wetting transition occurring near the nematic-isotropic transition. Pretransitional effects due to the structuring of the drop close to the solid surface can be observed in the isotropic phase.

引用

收藏

页码：610 / 613

页数：4

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