BiFe 1−x Ni x O 3 (x = 0.7, 0.8 and 0.9) polycrystalline ceramics are synthesized by a solid-state reaction, and their structural, absorption, leakage current and electrical properties are investigated. The X-ray diffraction measurements show that the lattice parameter values increase with increasing the substitution of Ni 2+ ions for Fe 3+ ions. The optical absorption spectra indicate that the band gap energy increases with increasing Ni 2+ ions. Leakage currents are much decreased by about three orders of magnitude with increasing Ni ions. The J-E hysteresis was also investigated. Both real and imaginary dielectric constants are investigated as a function of both frequency and temperature. The room temperature dielectric measurement with a wide frequency range of 1 KHz-1 MHz reveals that the real and imaginary dielectric constants are decreased with increasing frequency of BiFe 1−x Ni x O 3 (x = 0.7, 0.8, 0.9) ceramics. The real and imaginary dielectric constants are found to be increased with temperature. The temperature dependence of ε′ and ε″ exhibits an anomaly which shifted to lower temperature with increasing Ni 2+. The anomaly indicates the possible existence of spin-glass states with Ni 2+ ion substitution in places of Fe 3+ ions.
This erratum is published as:1-The name of third author to be read as Huda Al fannakh. 2-Acknowledgments The authors would like to express their deep gratitude to King Faisal University, College of Science-Physics Department and the Deanship of Scientific Research for their kind supports. This study was supported by the Deanship of a Scientific Research (King Faisal University): proposed no. 186036. Original article has been updated thus.
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