Effects of Co doping on electronic structure and electric/magnetic properties of La0.1Bi0.9FeO3 ceramics

In this work, we report the influence of Co-doping on the electronic band structure, dielectric and magnetic properties of La0.1Bi0.9Fe1-xCoxO3 ceramics. X-ray photoelectron spectroscopy investigation shows that Co dopant can shift the valence band spectrum and core-level lines of constituent elements towards higher bind energy regions simultaneously increase the concen- tration of oxygen vacancies in ceramics. The effects of dopant are discussed with focus given to the Co-doping induced en- hancement of electrical conductivity and resistive switching phenomena.