Two transitions between isotropic and nematic phases in confined liquid crystals

被引：25

作者：

Emelyanenko, Alexander V. ^{[1
]}

Aya, Satoshi ^{[2
]}

Sasaki, Yuji ^{[3
]}

Araoka, Fumito ^{[2
]}

Ema, Kenji ^{[3
]}

Ishikawa, Ken ^{[2
]}

Takezoe, Hideo ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

[3] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

PHYSICAL REVIEW E | 2011年 / 84卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

MOLEKULAR-STATISTISCHE THEORIE; SURFACE;

D O I：

10.1103/PhysRevE.84.041701

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：

The molecular mean-field theory for the nematic-isotropic (N-Iso) phase transition in the vicinity of the surface is derived. We have shown that the nematic order parameter in liquid crystal near the surface is generally different from that in the bulk. It is never equal to zero if the anisotropic interaction with the surface is present. At the same time, transition from the phase with large nematic order parameter at the surface to the phase with small nematic order parameter at the surface is possible on heating. This surface transition always happens at higher temperatures than N-Iso phase transition related to the bulk. The theoretical prediction was well reproduced experimentally.

引用

页数：4

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