TITLE:
Study of the Structural and Electrical Properties of Cr-Doped BiFeO3 Ceramic
AUTHORS:
S. S. Arafat, S. Ibrahim
KEYWORDS:
X-Ray Diffraction (XRD), Dielectric Properties, Leakage Current Density
JOURNAL NAME:
Materials Sciences and Applications,
Vol.8 No.10,
September
7,
2017
ABSTRACT: Multiferroic BiFe1-xCrxO3 (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.