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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
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
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.29.L333