Effect of Sm, Co codoping on the dielectric and magnetoelectric properties of BiFeO3 polycrystalline ceramics

Multiferroic Bi0.95Sm0.05Fe1−xCoxO3 (x=0−0.1) ceramics were prepared by the rapid liquid phase sintering method. For all the samples studied, the dielectric constant and dielectric loss decrease with increasing frequency in the range from 1 kHz to 1 MHz. It shows that the dielectric constant of Bi0.95Sm0.05FeO3 at 10 kHz is about forty times larger than that of pure BiFeO3. This dramatic change in the dielectric properties of...