Dielectric and electro-optical investigations on ferroelectric metallomesogens

M. A. Athanassopoulou; Leonid A. Beresnev; Y. G. Galyametdinov; Wolfgang Haase

doi:10.1117/12.299955

1 February 1998 Dielectric and electro-optical investigations on ferroelectric metallomesogens

M. A. Athanassopoulou, Leonid A. Beresnev, Y. G. Galyametdinov, Wolfgang Haase

Proceedings Volume 3318, Liquid Crystals: Physics, Technology, and Applications; (1998) https://doi.org/10.1117/12.299955
Event: Liquid Crystals, 1997, Zakopane, Poland

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 P_S 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.

Citation Download Citation

M. A. Athanassopoulou, Leonid A. Beresnev, Y. G. Galyametdinov, and Wolfgang Haase "Dielectric and electro-optical investigations on ferroelectric metallomesogens", Proc. SPIE 3318, Liquid Crystals: Physics, Technology, and Applications, (1 February 1998); https://doi.org/10.1117/12.299955

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