Gaussian tricritical behavior of heat capacity at the smectic-A smectic-C liquid crystal transition

被引：13

作者：

Ema, K

Takagi, A

Yao, H

机构：

[1] Department of Physics, Faculty of Science, Tokyo Institute of Technology, Meguro, Tokyo, 152

来源：

PHYSICAL REVIEW E | 1996年 / 53卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.53.R3036

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：

High resolution ac calorimetric measurements have been carried out near the smectic-A-smectic-C phase transition in a racemic mixture of 4-(1-methylheptyloxycarbonyl)phenyl 4'-octyloxybiphenyl-4-carboxylate (MHPOBC). The heat capacity data show a distinct pretransitional excess above the transition temperature as well as below it. Analysis of the data reveals Gaussian tricritical behavior of this transition. It is also found that the anomaly is described well with the renormalization-group expression with corrections-to-scaling terms.

引用

收藏

页码：R3036 / R3039

页数：4

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