Experimental Studies on Phase Transitions in an Antiferroelectric Liquid Crystal

The effect of optical purity on the antiferroelectric phase transition and the field-induced ferroelectric phase transition in Sm C A * were studied by means of dielectric measurements and observations of D - E hysteresis loops. The Curie-Weiss law was found to hold in Sm A and the Curie-Weiss const...

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Veröffentlicht in:Japanese Journal of Applied Physics 1990-02, Vol.29 (2A), p.L333
Hauptverfasser: Orihara, Hiroshi, Fujikawa, Tetsuya, Ishibashi, Yoshihiro, Yamada, Yuichiro, Yamamoto, Norio, Mori, Kahoru, Nakamura, Koji, Suzuki, Yoshiichi, Hagiwara, Takashi, Kawamura, Ichiro
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container_issue 2A
container_start_page L333
container_title Japanese Journal of Applied Physics
container_volume 29
creator Orihara, Hiroshi
Fujikawa, Tetsuya
Ishibashi, Yoshihiro
Yamada, Yuichiro
Yamamoto, Norio
Mori, Kahoru
Nakamura, Koji
Suzuki, Yoshiichi
Hagiwara, Takashi
Kawamura, Ichiro
description The effect of optical purity on the antiferroelectric phase transition and the field-induced ferroelectric phase transition in Sm C A * were studied by means of dielectric measurements and observations of D - E hysteresis loops. The Curie-Weiss law was found to hold in Sm A and the Curie-Weiss constant to increase as the optical purity is reduced. Three types of D - E curves were obtained in the Sm C A * phase. It was found that a double hysteresis loop changed into a single one at high frequencies. The results obtained are discussed on the basis of a phenomenological theory.
doi_str_mv 10.1143/JJAP.29.L333
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title Experimental Studies on Phase Transitions in an Antiferroelectric Liquid Crystal
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