Title :
Novel dielectric behavior of ferroelectric liquid crystals and high-field effects
Author :
Yoshino, Kohzoh ; Taniguchi, H. ; Nakao, K. ; Ozaki, M.
Author_Institution :
Fac. of Eng., Osaka Univ., Japan
fDate :
8/1/1988 12:00:00 AM
Abstract :
Extremely large spontaneous polarization (>10-7 C/cm2) and permittivity (>10000) are observed in appropriately designed ferroelectric liquid crystals. The permittivity and its temperature dependence are found to be influenced strongly by the electric field and a wall effect. These results are discussed in terms of a phenomenological thermodynamic theory. New applications of ferroelectric liquid crystals are proposed.
Keywords :
dielectric polarisation; dielectric properties of liquids and solutions; ferroelectric liquid crystals; high field effects; permittivity; smectic liquid crystals; dielectric behavior; ferroelectric liquid crystals; high-field effects; permittivity; phenomenological thermodynamic theory; smectic mesophase; spontaneous polarization; temperature dependence; wall effect; Crystalline materials; Design engineering; Dielectric liquids; Dielectric materials; Ferroelectric materials; Liquid crystals; Permittivity; Polarization; Temperature dependence; Voltage;
Journal_Title :
Electrical Insulation, IEEE Transactions on
