Effects of trivalent gadolinium and cobalt co-substitution on the crystal structure, electronic transport, and ferromagnetic properties of bismuth ferrite

Multiferroic trivalent gadolinium and cobalt co-substituted bismuth ferrite Bi0.95Gd0.05Fe1−xCoxO3(x=0, 0.05, 0.1, 0.15, 0.2) ceramics were prepared by rapid liquid phase sintering method. The results showed that all the peaks of X-ray Diffraction (XRD) for Bi0.95Gd0.05Fe1−xCoxO3 samples can be indexed according to the crystal structure of pure BiFeO3. XRD analysis revealed a phase transition in Gd3+ and Co3+ co-doped BiFeO3 when x was larger...