Complex Impedance Spectroscopic Properties of Ba3V2O8 Ceramics

الملخص EN

The polycrystalline sample of Ba3V2O8 was prepared by a high-temperature solid-state reaction technique.

The effect of temperature on impedance parameters was studied using an impedance analyzer in a wide frequency range (102–106 Hz).

The real and imaginary parts of complex impedance trace semicircles in the complex plane.

The temperature-dependent plots reveal the presence of both bulk and grain boundary effects above 125∘C.

The bulk resistance of the material decreases with rise in temperature.

This exhibits a typical negative temperature coefficient of resistance (NTCR) behavior of the material.

The modulus analysis suggests a possible hopping mechanism for electrical transport processes of the material.

The nature of variation of dc conductivity suggests the Arrhenius type of electrical conductivity.