CRITICAL FLUCTUATIONS NEAR THE SMECTIC-A SMECTIC-C TRANSITION OF A PARTIALLY PERFLUORINATED COMPOUND

被引：20
作者：
REED, L
STOEBE, T
HUANG, CC
机构：
[1] School of Physics and Astronomy, University of Minnesota, Minneapolis
来源：
PHYSICAL REVIEW E | 1995年 / 52卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.52.R2157
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：
Utilizing our high-resolution hulk and free-standing film calorimeters, we have conducted detailed heat-capacity measurements near the smectic-A-smectic-C phase transition of one partially perfluorinated liquid-crystal compound. The thin film data clearly demonstrate the importance of fluctuations due to reduced dimensionality. Moreover, the data from bulk samples and thick films cannot be adequately fit using the customary extended mean-field model. Successful fitting requires the inclusion of terms characterizing Gaussian fluctuations.
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页码：R2157 / R2160
页数：4
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