Enhanced dielectric response of liquid crystal ferroelectric suspension

被引：35
|
作者：
Buchnev, O
Ouskova, E
Reznikov, Y
Reshetnyak, V
Kresse, H
Grabar, A
机构：
[1] Inst Phys, UA-03039 Kiev, Ukraine
[2] Kyiv Natl Taras Shevchenko Univ, UA-03022 Kiev, Ukraine
[3] Univ Halle Wittenberg, Inst Phys Chem, D-06108 Halle Saale, Germany
[4] Uzhgorod Natl Univ, Inst Solid State Phys & Chem, UA-88000 Uzhgorod, Ukraine
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2004年 / 422卷
关键词：
dielectric properties; ferroelectric particles; liquid crystal suspension; nematic liquid crystal ferroelectric suspension;
D O I：
10.1080/15421400490502012
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
It was found that doping of tiny ferroelectric particles to a nematic liquid crystal(LC)strongly affects dielectric properties of the system. The doping increases dielectric response of the LC due to interaction between LC molecules and particles, which possess large dipole moment and high polarisability. The suspension reveals high dielectric response on either side of the Curie temperature, TCurie, and peculiarity at the vicinity of TCurie. This result points at retention of dipole ordering above Curie temperature that may be a result of a memory effect.
引用
收藏
页码：47 / 55
页数：9
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