DIELECTRIC-DISPERSION IN FERRIELECTRIC PHASE OF ANTIFERROELECTRIC LIQUID-CRYSTAL

被引：39

作者：

HILLER, S ^{[1
]}

PIKIN, SA ^{[1
]}

HAASE, W ^{[1
]}

GOODBY, JW ^{[1
]}

NISHIYAMA, I ^{[1
]}

机构：

[1] JAPAN ENERGY CORP,TODA,SAITAMA 335,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1994年 / 33卷 / 8A期

关键词：

FERROELECTRIC LIQUID CRYSTALS; ANTIFERROELECTRICITY; DIELECTRIC SPECTROSCOPY; GOLDSTONE MODE;

D O I：

10.1143/JJAP.33.L1096

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the dielectric behavior in the ferroelectric SmC* and ferrielectric smc(gamma)* phases of the antiferroelectric liquid crystal (R)-1-methylheptyl-4-(4''-n-dodecyloxybiphenyl-4'carbonoyloxy)-3-fluoro-benzoate. In the SmC(gamma)* phase, 3 dieletric relaxations were recognized in the frequency range under consideration. The 2 relaxation processes at low frequency with high dielectric loss were attributed to azimuthal fluctuation of the molecules around the cone angle phi. Those relaxations are investigated as functions of temperature and applied bias electric field. Besides the 2 low-frequency loss processes, one additional loss process with weak intensity was observed.

引用

页码：L1096 / L1099

页数：4

共 25 条

[1] DIELECTRIC RELAXATIONS IN A LIQUID-CRYSTAL WITH HELICOIDAL DIPOLE ORDERING [J].