Author(s)

S. S. Arafat^1,2, S. Ibrahim^1,3

¹Department of Physics, College of Science, King Faisal University, Hofuf, KSA.
²Department of Physics, College of Science, Fayoum University, Al Fayoum, Egypt.
³Departement of Physics, Cairo University, Giza, Egypt.

Multiferroic BiFe_1-xCr_xO₃ (x = 0.2 and 0.4) ceramics were synthesized in a single phase. The effects of Cr³⁺ substitution on the crystal structure, dielectric permittivity and leakage current were investigated. Preliminary X-ray structural studies revealed that the samples had a rhombohedral perovskite crystal structure. The dielectric constant ε' significantly increased while the dielectric loss tanδ was substantially decreased with the increase in Cr³⁺ substitution. The temperature effect on the dielectric properties exhibited an anomaly corresponding to magneto-electric coupling in the samples and was shifted to lower temperatures with the increase in Cr³⁺ substitution. The leakage current density also reduced in magnitude with the increase in the Cr³⁺ substitution.

X-Ray Diffraction (XRD), Dielectric Properties, Leakage Current Density

Arafat, S. and Ibrahim, S. (2017) Study of the Structural and Electrical Properties of Cr-Doped BiFeO₃ Ceramic. Materials Sciences and Applications, 8, 716-725. doi: 10.4236/msa.2017.810051.