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Title: Dielectric properties of gadolinium-based liquid crystalline complex

Abstract

The permittivity components of the liquid crystalline gadolinium complex with Lewis bases and β-diketonates as ligands are measured in the frequency range from 100 Hz to 5 MHz. The magnitude and sign of the dielectric anisotropy of the complex are determined. Two dispersion regions of the permittivities are found in the liquid crystalline phase. The mechanisms responsible for the relaxation phenomena occurring in the sample are established. The dielectric relaxation times, activation energies, and dipole moment of the complex are obtained. The results of the study are compared with the dielectric properties of ytterbium and terbium complexes having the same ligand environment.

Authors:
; ;  [1]; ;  [2]
  1. St. Petersburg State University (Russian Federation)
  2. Kazan National Research Technical University (Russian Federation)
Publication Date:
OSTI Identifier:
22758344
Resource Type:
Journal Article
Journal Name:
Crystallography Reports
Additional Journal Information:
Journal Volume: 62; Journal Issue: 5; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7745
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACTIVATION ENERGY; ANISOTROPY; COMPARATIVE EVALUATIONS; CRYSTALS; DIELECTRIC MATERIALS; DIPOLE MOMENTS; DISPERSIONS; GADOLINIUM; GADOLINIUM COMPLEXES; LEWIS BASES; LIGANDS; LIQUIDS; PERMITTIVITY; RELAXATION; TERBIUM COMPLEXES; YTTERBIUM COMPLEXES

Citation Formats

Dobrun, L. A., E-mail: l.dobrun@spbu.ru, Kovshik, A. P., Ryumtsev, E. I., Galyametdinov, Yu. G., and Knyazev, A. A. Dielectric properties of gadolinium-based liquid crystalline complex. United States: N. p., 2017. Web. doi:10.1134/S1063774517050042.
Dobrun, L. A., E-mail: l.dobrun@spbu.ru, Kovshik, A. P., Ryumtsev, E. I., Galyametdinov, Yu. G., & Knyazev, A. A. Dielectric properties of gadolinium-based liquid crystalline complex. United States. doi:10.1134/S1063774517050042.
Dobrun, L. A., E-mail: l.dobrun@spbu.ru, Kovshik, A. P., Ryumtsev, E. I., Galyametdinov, Yu. G., and Knyazev, A. A. Fri . "Dielectric properties of gadolinium-based liquid crystalline complex". United States. doi:10.1134/S1063774517050042.
@article{osti_22758344,
title = {Dielectric properties of gadolinium-based liquid crystalline complex},
author = {Dobrun, L. A., E-mail: l.dobrun@spbu.ru and Kovshik, A. P. and Ryumtsev, E. I. and Galyametdinov, Yu. G. and Knyazev, A. A.},
abstractNote = {The permittivity components of the liquid crystalline gadolinium complex with Lewis bases and β-diketonates as ligands are measured in the frequency range from 100 Hz to 5 MHz. The magnitude and sign of the dielectric anisotropy of the complex are determined. Two dispersion regions of the permittivities are found in the liquid crystalline phase. The mechanisms responsible for the relaxation phenomena occurring in the sample are established. The dielectric relaxation times, activation energies, and dipole moment of the complex are obtained. The results of the study are compared with the dielectric properties of ytterbium and terbium complexes having the same ligand environment.},
doi = {10.1134/S1063774517050042},
journal = {Crystallography Reports},
issn = {1063-7745},
number = 5,
volume = 62,
place = {United States},
year = {2017},
month = {9}
}