Soft Mode Contribution around Sm A-Sm C* Phase Transition Temperature under DC Bias Field in Ferroelectric Liquid Crystal
- 1 November 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (11A) , L1996
- https://doi.org/10.1143/jjap.27.l1996
Abstract
The relaxation of the soft mode is observed both in the Sm A and Sm C* phases by eliminating the contribution of the Goldstone mode under a dc bias field. Three relaxations are observed in the Sm C* phase at the frequency range below 10 MHz. The temperature dependence of the dielectric constant originating in the soft mode shows a sharp peak at the phase transition temperature between the Sm A and Sm C* phases, and shows Curie type behavior. An anomalous dip just below the peak of the dielectric constant is also observed at very high frequencies.Keywords
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