DIELECTRIC-RELAXATION IN POLAR NEMATIC LIQUID-CRYSTALS

被引:11
作者
KALMYKOV, YP
机构
[1] Institute of Radioengineering and Electronics of the U.S.S.R Academy of Sciences, Moscow, 103907, K. Marx av. 18
关键词
D O I
10.1080/02678299108036440
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The relationship between the complex dielectric permittivity tensor of a polar nematic liquid crystal and the autocorrelation matrix for the permanent dipole moment of a molecule is obtained. The theory is applicable to the whole frequency range which characterizes orientational relaxation in liquid crystals (up to approximately 5 THz). The models of rotational diffusion and extended rotational diffusion in a mean field nematic potential are used to evaluate the dielectric absorption and dispersion in nematics.
引用
收藏
页码:519 / 537
页数:19
相关论文
共 31 条
[11]  
Forster D., 1975, HYDRODYNAMIC FLUCTUA
[12]   DEPOLARIZED RAYLEIGH-SCATTERING IN LIQUIDS - MOLECULAR-REORIENTATION AND ORIENTATION PAIR CORRELATIONS IN A NEMATIC LIQUID-CRYSTAL - MBBA [J].
GIERKE, TD ;
FLYGARE, WH .
JOURNAL OF CHEMICAL PHYSICS, 1974, 61 (06) :2231-2239
[13]   MOLECULAR-REORIENTATION IN LIQUID-CRYSTALS [J].
JANIK, JA ;
GODLEWSKA, M ;
GROCHULSKI, T ;
KOCOT, A ;
SCIESINSKA, E ;
SCIESINSKI, J ;
WITKO, W .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1983, 98 (1-4) :67-81
[14]   ON THE RELATIONSHIP BETWEEN MACROSCOPIC AND SINGLE-PARTICLE ORIENTATIONAL CORRELATION-FUNCTIONS IN POLAR LIQUIDS [J].
KALMYKOV, YP ;
LIMONOVA, SV .
JOURNAL OF MOLECULAR LIQUIDS, 1989, 43 :71-91
[15]  
KALMYKOV YP, 1987, KHIM FIZ, V6, P592
[16]  
KALMYKOV YP, 1988, KHIM FIZ, V7, P1341
[17]  
KALMYKOV YP, 1985, OPT SPEKTROSK+, V58, P805
[18]  
KIEVELSON D, 1975, MOL PHYS, V30, P1749
[19]  
LASSIER B, 1969, DISCUSS FARADAY SOC, V48, P39
[20]   THEORY OF DIELECTRIC-RELAXATION IN ANISOTROPIC SYSTEMS [J].
LUCKHURST, GR ;
ZANNONI, C .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1975, 343 (1634) :389-398