NDLI: Measurement of dielectric response of 1MC1EPOPB and 1BC1EPOPB ferroelectric liquid crystals

Content Provider	IEEE Xplore Digital Library
Author	Yoshino, K. Ozaki, M. Srivastava, K. Johri, M. Johri, G.K.
Copyright Year	1994
Abstract	Dielectric measurements have been carried out using an impedance analyzer for two ferroelectric liquid crystals R-4' (1-methoxycarbonyl-1-ethoxy) phenyl 4-(4-octyloxy phenyl) benzoate (1MC1EPOPB) and R-4' (1-butoxycarbonyl-1-ethoxy) phenyl 4-(4-octyloxy phenyl) benzoate (1BC1EPOPB). The two types have large spontaneous polarization, +1700 /spl mu/C/m/sup 2/ for 1MC1EPOPB and +2400 /spl mu/C/m/sup 2/ for 1BC1EPOPB. The permittivity and dielectric loss have been measured at different temperatures in the range 343.0 K to 383.0 K for 1MC1EPOPB and 318.0 K to 353.0 K for 1BC1EPOPB in the frequency range 2 Hz to 2 MHz. Both of the ferroelectric liquid crystals, 1MC1EPOPB and 1BC1EPOPB show a new phase smectic X along with smectic C* and smectic A phases. The work reported in this paper is new and is very useful in understanding their application in switching devices.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
Starting Page	179
Ending Page	183
Page Count	5
File Size	847252
File Format	PDF
ISSN	10709878
Volume Number	11
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Liquid crystals Dielectric measurements Dielectric liquids Ferroelectric materials Dielectric loss measurement Temperature measurement Impedance Polarization Permittivity Dielectric losses
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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