High-frequency dielectric measurements of TIIn₁-xEr_xSe₂ crystals

The purpose of this work is to study the dielectric properties of TIInSe₂ and TIInSe₂-Er single crystals in alternating electric fields, definition of the main dielectric coefficients and to establish the nature of dielectric losses. It was conducted dielectric measurements of a TIInSe₂ single crystal in the frequency range 5*10⁴ - 3.5*10⁷ Hz, which allowed to detect the nature of relaxation dispersion of the dielectric constant and dielectric losses in the nature of a single crystal. The effect of partial substitution of indium in TIInSe₂-Er by erbium on electrical and dielectric properties of the crystals was studied