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JOURNALS // Fizika Tverdogo Tela // Archive

Fizika Tverdogo Tela, 2016 Volume 58, Issue 6, Pages 1230–1235 (Mi ftt9970)

This article is cited in 3 papers

Liquid crystals

Mechanisms of dielectric polarization in thermotropic liquid-crystalline complexes based on lanthanides

L. A. Dobruna, A. P. Kovshika, E. I. Ryumtseva, A. A. Knyazevb, Yu. G. Galyametdinovb

a Saint Petersburg State University
b Kazan National Research Technological University

Abstract: The components of the dielectric constant of a terbium-based liquid-crystalline complex have been measured in the frequency range of 350–5 $\times$ 10$^6$ Hz. The magnitude and sign of the dielectric anisotropy of the complex have been determined. Dispersion of the dielectric constants in the liquid-crystalline and isotropic phases has been found. The mechanisms responsible for the relaxation phenomena that appear in the studied sample have been determined. The time of dielectric relaxation, the activation energy, and the dipole moment of the complex have been obtained.

Received: 12.11.2015


 English version:
Physics of the Solid State, 2016, 58:6, 1272–1277

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© Steklov Math. Inst. of RAS, 2025