Comparative study of electrophysical characteristics of ceramic and monocrystalline lithium tantalate

V.V. Efremov, M.N. Palatnikov, O.B. Shcherbina

I.V. Tananaev Institute of Chemistry and Technology of the Federal Research Centre Kola Science Centre of the RAS, Apatity, Russia

DOI: 10.26456/pcascnn/2019.11.129

Abstract: The microstructure of ceramic lithium tantalite LiTaO₃, obtained on the basis of finely dispersed microcrystalline monophasic powder, was studied by the probe microscopy. A comparative study of the dispersion of the complex impedance Z^*(ω) of LiTaO₃ and a crystalline sample of a non-polar X-orientation slice, grown by the Czochralski method, was carried out. Using measured Z and φ values, the real and imaginary components of the complex dielectric constant and impedance (admittance) are determined.

Keywords: lithium tantalate, ceramics, microstructure, impedance spectroscopy, dielectric permittivity, electrical conductivity.

Bibliography link:

Efremov, V.V. Comparative study of electrophysical characteristics of ceramic and monocrystalline lithium tantalate / V.V. Efremov, M.N. Palatnikov, O.B. Shcherbina // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials: Interuniversity collection of proceedings / Ed. by V.M. Samsonov, N.Yu. Sdobnyakov. – Tver: TSU, 2019. – I. 11. – P. 129-137.

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