Low Frequency Raman Spectra in Ester Liquid Crystals Near Phase Transitions

作     者：ZHANG Mingsheng HU Gongjian CHEN Qiang SUN Zhengmin YIN Zhen 

作者机构：Center for Materials AnalysisNanjing UniversityNanjing 210008 Department of PhysicsNanjing UniversityNanjing 210008 also Laboratory of Solid State MicrostructuresNanjing UniversityNanjing 210008 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1991年第8卷第2期

页      面：90-93页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of China 

主　　题：Phase Transition totally 

摘      要：Phase transitions of the ferroelectric liquid crystal were studied by recording low-frequency Raman spectra and three Raman lines at 15,49 and 93cm^(-1) were *** intensities of the 15 and 49 cm^(-1) modes reduce to zero at smectic C*transition temperature,and in the isotropic phase the 93cm^(-1) Raman line with partial frequency shift totally disappears.