COMPARATIVE STUDY OF ELECTROPHYSICAL CHARACTERISTICS OF CERAMIC AND MONOCRYSTALLINE LITHIUM TANTALATE

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