Dielectric characteristics of LiCo3/5Cu2/5VO4 ceramics

The LiCo3/5Cu2/5VO4 ceramics was produced by the solution-based chemical method and its dielectric and electrical modulus properties were investigated using complex impedance spectroscopy. Frequency dependence of dielectric constant (εr) at some selected temperatures shows low-frequency dispersion. Temperature dependence of εr at 1, 100, 200, 500 kHz and 1 MHz exhibits same value of transition temperature (Tc=300 °C) with (εr)max. ∼5147, 396, 270, 162 and 111, respectively. Complex electrical modulus study describes the presence of non- Debye type conductivity relaxation in the material.