AC - conductivity studies on Y1-xBixCrO3 solid solution

Abstract

YCrO 3 and the substitution of Bi +3 (6s 2) in the Y-site were synthesized by the sol gel process. The conductivity measurements using dielectric spectroscopy reveals that conductivity increases with increase of composition. Dielectric loss were used to understand the nature of conducting species and it reveals that chromates exhibits the usual reciprocal behaviour of charge carriers to motion of oxygen vacancies as we increase the Bi composition and temperature. Impedance and microstructural studies revealed that conductivity of the chromates was dominated by the grain contribution.

A comprehensive review on the ferroelectric orthochromates: Synthesis, property, and application

“…This measurement indicated that the conductivity increases with increasing the composition. Dielectric loss indicated that chromates display the characteristic of charge carrier to itinerary of oxygen vacancy with increasing temperature and the Bi content [256]. Moreover, the grain contribution dominated the conductivity in orthochromates [257].…”