CALORIMETRIC AND STRUCTURAL CHARACTERIZATION OF THIN LIQUID-CRYSTAL FILMS EXHIBITING THE SMECTIC-A-HEXATIC-B-CRYSTAL-B TRANSITIONS

被引：41
|
作者：
JIN, AJ
VEUM, M
STOEBE, T
CHOU, CF
HO, JT
HUI, SW
SURENDRANATH, V
HUANG, CC
机构：
[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455
[2] SUNY BUFFALO,DEPT PHYS,BUFFALO,NY 14260
[3] ROSWELL PK CANC INST,DEPT BIOPHYS,BUFFALO,NY 14263
[4] KENT STATE UNIV,INST LIQUID CRYSTAL,KENT,OH 44242
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.74.4863
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
High-resolution heat-capacity and electron-diffraction measurements have been conducted on thin free-standing films of a liquid-crystal compound exhibiting the smectic- A-hexatic- B-crystal- B transitions. Despite the absence of herringbone order, the liquid-hexatic transition in extremely thin films has nevertheless been found to show a pronounced pretransitional heat-capacity anomaly, in disagreement with the predictions of two-dimensional melting theory. © 1995 The American Physical Society.
引用
收藏
页码：4863 / 4866
页数：4
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