Author:
Wojciechowski M.,Bąk G.,Tykarska M.
Abstract
AbstractMixture of two liquid crystalline components exhibits the antiferroelectric phase in a broad temperature range at room temperatures, though the two components separately do not show an antiferroelectric phase in a temperature range applied. The dielectric spectroscopy technique combined with measurements of the selective light reflection was used for identification and characterization of the phases and subphases existing in the mixture. In the SmC*A phase, the low frequency mode characteristic of antiferroelectric phase has been detected. In the broad temperature range between SmC*A and SmA* phases, no relaxation mode has been detected. The soft mode registered near the phase transition to SmA* phase follows the Curie-Weiss law.
Subject
Electrical and Electronic Engineering,Radiation,General Materials Science
Reference13 articles.
1. J.P.F. Lagerwall, P. Rudquist, S.T. Lagerwall, and F. Giesselmann, “On the phase sequence of antiferroelectric liquid crystals and its relation to orientational and translational order”, Liq. Cryst. 30, 399–414 (2003).
2. E. Górecka, D. Pociecha, M. Cepic, B. Zeks, and R. Dąbrowski, “Enantiometric excess dependence of the phase diagram of antiferroelectric liquid crystals”, Phys. Rev. E65, 061703 (2002).
3. I. Musevic, R. Blinc, and B. Zeks, The Physics of Ferroelectric and Antiferroelectric Liquid Crystals, World Scientific Publishing Co. Pte. Ltd., Singapore, 2000.
4. M. Buivydas, F. Gouda, S.T. Lagerwall, and B. Stebler, “The molecular aspect of double absorption peak in the dielectric spectrum of the antiferroelectric liquid crystal phase”, Liq. Cryst. 18, 879–886 (1995).
5. M. Buivydas, F. Gouda, G. Andersson, S.T. Lagerwall, B. Stebler, J. Bomelburg, G. Heppke, and B. Gestblom, “Collective and non-colective excitations in antiferroelectric and ferrielectic liquid crystals studied by dielectric relaxation spectroscopy and electo-optic measurements”, Liq. Cryst. 23, 723–739 (1997).
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