Electroclinic effect at thephase change in a chiral smectic liquid crystal
- 1 January 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 19 (1), 338-347
- https://doi.org/10.1103/physreva.19.338
Abstract
When a smectic- phase is composed of chiral molecules, it exhibits an electroclinic effect, i.e., a direct coupling of molecular tilt to applied field. The pretransitional behavior of the electroclinic effect in the phase is used to study the critical behavior near the second-order, smectic-—smectic- phase transition. This behavior is measured by monitoring the change in birefringence of a sample as the electroclinic effect causes a tilt of the molecules. A large pretransitional effect is measured, and constants describing the critical behavior are determined.
Keywords
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