EFFECT OF FREE SURFACES ON THE SMECTIC-A-HEXATIC-B-CRYSTAL-E TRANSITIONS IN THIN FREESTANDING FILMS OF THE LIQUID-CRYSTAL COMPOUND N-HEPTYL-4'-N-PENTYLOXYBIPHENYL-4-CARBOXYLATE (750BC)

被引：44

作者：

GEER, R ^{[1
]}

STOEBE, T ^{[1
]}

HUANG, CC ^{[1
]}

机构：

[1] UNIV MINNESOTA,SCH PHYS & ASTRON,MINNEAPOLIS,MN 55455

来源：

PHYSICAL REVIEW E | 1993年 / 48卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.48.408

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：

An ac free-standing film calorimeter has been recently developed to investigate the physical properties of the smectic-A-hexatic-B-crystal-E transitions in free-standing films of the liquid-crystal compound n-heptyl-4'-n-pentyloxybiphenyl-4-carboxylate (75OBC). Due to the surface-enhanced order on free surfaces, we have discovered many new physical phenomena, e.g., a rich phase diagram, layer-by-layer transitions near a continuous transition, an interplay between a strong first-order surface transition and a nearby continuous transition, etc.

引用

页码：408 / 427

页数：20

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