Giant Electroclinic Effect in Chiral Smectic A Phase of Ferroelectric Liquid Crystals
- 1 November 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (11A) , L1787-1789
- https://doi.org/10.1143/jjap.26.l1787
Abstract
A giant electroclinic effect was observed in smectic A (SA) phases of various ferroelectric liquid crystals with spontaneous polarizations as large as several hundred µC/m2. An induced tilt angle increased linearly with an electric field, E, and tended to saturate toward 16° . The induced tilt angle of a few degrees was observable even at a temperature 20° above the SA-SC * transition. It was confirmed using several compounds that the induced tilt angle is proportional to the spontaneous polarization in SC *. The response time is less than 1 µs and, when normalized by the induced tilt angle, linearly depends on E, i.e., τ'/θ0∝E.Keywords
This publication has 10 references indexed in Scilit:
- Viscosity Measurement in Ferroelectric Liquid Crystals Using a Polarization Switching CurrentJapanese Journal of Applied Physics, 1987
- A Practical Method of Preparing Thin Homogeneous Ferroelectric Smectic Cells for Electro-Optical Microsecond Switches (II): Sm A Liquid Crystal Growth under a Temperature GradientJapanese Journal of Applied Physics, 1984
- Ferroelectric Liquid Crystal with Extremely Large Spontaneous PolarizationJapanese Journal of Applied Physics, 1984
- Electroclinic effect at thephase change in a chiral smectic liquid crystalPhysical Review A, 1979
- Birefringence in the Sm A Phase and the Disappearance of Helicoidal Structure in the Sm C*Phase Caused by an Electric Field in DOBAMBCJapanese Journal of Applied Physics, 1978
- Electroclinic Effect at thePhase Change in a Chiral Smectic Liquid CrystalPhysical Review Letters, 1977
- Optical Study of a Chiral Smectic C Under ShearMolecular Crystals and Liquid Crystals, 1977
- Observation of Pyroelectricity in Chiral Smectic-and -Liquid CrystalsPhysical Review Letters, 1976
- Influence de la déformation plastique sur les propriétés ultrasonores de la glace IhJournal de Physique, 1975
- Shear flow induced polarization in ferroelectric smectics CJournal de Physique, 1975