ELECTRIC-FIELD-INDUCED TRANSITIONS AMONG ANTIFERROELECTRIC, FERRIELECTRIC AND FERROELECTRIC PHASES IN A CHIRAL SMECTIC MHPOBC

被引：66
作者：
HIRAOKA, K
CHANDANI, ADL
GORECKA, E
OUCHI, Y
TAKEZOE, H
FUKUDA, A
机构：
[1] Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Meguro-ku, Tokyo
[2] Warsaw University, Department of Chemistry, Laboratory of Dielectrics, Warsaw
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 08期
关键词：
Antiferroelectricity; Conoscope; De threshold; Dielectric constant; Ferrielectricity; Ferroelectric liquid crystal; Ferroelectricity;
D O I：
10.1143/JJAP.29.L1473
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A T-E phase diagram of MHPOBC (C8H17O--COO*CH(CH3)C6H13) has been obtained by means of the temperature (T) dependence of the dielectric constant under a dc biased electric (E) field. It is presumed from the T-E phase diagram that there is a temperature range where the field-induced antiferroelectric-ferrielectric-ferroelectric phase transitions take place. These transitions have been confirmed as five transmittance states between crossed Nicols under a triangular wave, i.e., ferro-ferri-antiferro-ferri-ferro. The field-induced antiferroelectric-ferrielectric phase transition has also been identified through conoscopic observation. © 1990 IOP Publishing Ltd.
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收藏
页码：L1473 / L1476
页数：4
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