Pseudo-lattice vibration in smectic liquid crystals

被引：3
|
作者：
Nakayama, H [1 ]
Minagawa, Y [1 ]
Yajima, S [1 ]
Hyuga, T [1 ]
Ishii, K [1 ]
机构：
[1] Gakushuin Univ, Dept Chem, Toshima Ku, Tokyo 1718588, Japan
来源：
PHYSICA B | 1999年 / 263卷
关键词：
liquid crystal; smectic phase; low-frequency Raman spectra; lattice vibration;
D O I：
10.1016/S0921-4526(98)01466-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Molecular motion in liquid-crystal phases of 4-octyl-4'-cyanobipheny (8CB) was studied with low-frequency Raman scattering and X-ray diffraction. A definite Raman band was found for the smectic phase with a peak at 9 cm(-1). This band is assigned to the intermolecular vibration in the smectic layers with bimolecular structure, and is considered to indicate the existence of pseudo-lattice vibrations propagating along the direction perpendicular to the smectic layers. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：835 / 838
页数：4
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