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Abstract
We have investigated the phase transition behaviors of an antiferroelectric liquid crystal, which was reported to exhibit a re-entrant phase transition (SmC*-SmCA*-SmC*-SmA in the order of increasing temperature) by application of electric fields. By birefringence and dielectric measurements an electric-field-temperature (E-T) phase diagram was obtained. In the E-T phase diagram, it was observed that the SmC A* phase disappears under high electric fields and it is isolated. In addition, there is a boundary line between the high- and low-temperature SmC* phases.
Acknowledgments
This work has been partially supported by Grant-in-Aid for Scientific Research (B, No. 19740255 and C, No. 19540326) from the Ministry of Education, Culture, Sports, Science and Technology of Japan. Y.-H. Na and H. Orihara deeply appreciate the support by KAKENHI (Grant-in-Aid for Scientific Research) on Priority Area “Soft Matter Physics” from the Ministry of Education, Culture, Sports, Science and Technology of Japan.