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Proceedings Paper

Dielectric and electro-optical investigations on ferroelectric metallomesogens
Author(s): M. A. Athanassopoulou; Leonid A. Beresnev; Y. G. Galyametdinov; Wolfgang Haase
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Paper Abstract

Binary mixtures of achiral liquid-crystalline copper complexes with a chiral nonmesomorphic dopant were prepared. The achiral copper complexes incorporating Schiff's base ligands show enantiotropic smectic C and smectic A mesophases. A study of the ferroelectric properties of these materials was performed. The spontaneous polarization PS and the switching time were determined by means of the polarization reversal method. The dielectric behavior of one copper compound was investigated by dielectric relaxation spectroscopy in the frequency range from 10 Hz to 13 MHz. It exhibits the Goldstone mode, the soft mode, and a molecular mode.

Paper Details

Date Published: 1 February 1998
PDF: 5 pages
Proc. SPIE 3318, Liquid Crystals: Physics, Technology, and Applications, (1 February 1998); doi: 10.1117/12.299955
Show Author Affiliations
M. A. Athanassopoulou, Technische Hochschule Darmstadt (Germany)
Leonid A. Beresnev, Technische Hochschule Darmstadt (United States)
Y. G. Galyametdinov, Technische Hochschule Darmstadt (FRG) and Kazan Physical Technical Institute (Russia)
Wolfgang Haase, Technische Hochschule Darmstadt (Germany)


Published in SPIE Proceedings Vol. 3318:
Liquid Crystals: Physics, Technology, and Applications
Jolanta Rutkowska; Stanislaw J. Klosowicz; Jerzy Zielinski; Jozef Zmija, Editor(s)

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