A systematic study on magnetic, dielectric and magnetocapacitance properties of Ni doped bismuth ferrite Original Research Article

In this paper we report the structural, magnetic, magnetocapacitance and dielectric properties of BiFe1−xNixO3 nanoceramics (with x=0, 0.1) prepared by the sol-gel method. XRD analysis showed formation of single phase nanoceramics (particle size ∼50 nm by TEM). Samples of BiFe1−xNixO3 were divided into two parts—one of them quenched in liquid nitrogen and another sintered in the normal way. We observed the enhancement in magnetic and dielectric properties of quenched sample. The splitting of zero field cool (ZFC) and field cool (FC) magnetization curves at low temperature reveals spin- glass behavior. Quenched sample showed the enhancement of blocking temperature.