Dielectric properties of ferroelectric liquid crystals confined in inorganic micropores

被引：1

作者：

Rozanski, SA ^{[1
]}

Naji, L ^{[1
]}

Stannarius, R ^{[1
]}

Kremer, F ^{[1
]}

机构：

[1] Maria Sklodowska Curie High Sch, PL-64920 Pila, Poland

来源：

NONLINEAR OPTICS OF LIQUID AND PHOTOREFRACTIVE CRYSTALS II | 1998年 / 3488卷

关键词：

dielectric spectroscopy; porous membranes; ferroelectric liquid crystals;

D O I：

10.1117/12.323721

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The temperature dependence of the complex dielectric permittivity in confined and bulk samples of the ferroelectric liquid crystals 4-(2'-methylbutyl) phenyl 4'-n-octylbiphenyl-4-carboxylate (CE8) and p-decyloxybenzylidene-p'-amino 2-methyl-butyl-cinnamate (DOBAMBC) in the bulk and adsorbed in ANOPORE membranes (0.2 mu m diameter) has been measured in the frequency range 10(-1) Hz to 10(9) Hz. Several relaxations processes have been obtained for CE8 and DOBAMBC in the bulk The spectra of the confined samples show that the molecular processes are nearly uninfluenced in restricted geometry. However, the Goldstone mode in the ferroelectric SmC* phase is no longer observed.

引用

页码：36 / 39

页数：4

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