New investigation on the tetragonal liquid-crystalline phase or SmQ

被引：22
|
作者：
Pansu, B
Nastishin, Y
Impéror-Clerc, M
Veber, M
Nguyen, HT
机构：
[1] Univ Paris 11, UMR 8502, Phys Solides Lab, F-91405 Orsay, France
[2] Inst Phys Opt, UA-79005 Lvov, Ukraine
[3] Univ Bordeaux 1, Ctr Rech Paul Pascal, CNRS, F-33600 Pessac, France
来源：
EUROPEAN PHYSICAL JOURNAL E | 2004年 / 15卷 / 02期
关键词：
D O I：
10.1140/epje/i2004-10051-y
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Chiral liquid crystals, for which twist and smectic order strongly compete, can exhibit complex architectures. This is the case of the SmQ phase which shows a high degree of 3D order (tetragonal or hexagonal) as well as a liquid signature. We have combined X-ray scattering and optical observations on a new compound exhibiting a SmQ phase to discriminate between the two models proposed by A.M. Levelut et al. (J. Phys. II 7, 981 (1997)) at the molecular level for the phase with the I4(1)22 space group.
引用
收藏
页码：225 / 230
页数：6
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