Abstract
In this research work, (Bi2O3Fe2O3)0.4(Nb2O5)0.6 was made by the solid state reaction method. Samples were sintered at four different temperatures (850°C, 925°C, 1000°C and 1150°C) to study the effect of sintering temperature on the various properties of the samples. X-ray diffraction analysis confirmed that single phase Bi1.721δ0.089Fe1.056Nb1.134O7 was found when sintering temperature increased. At the same time, larger grain size was found when sintering temperature increased. From variation of dielectric loss with respect to frequency, a small peak was found when sample was sintered at higher temperature (1150°C). Dielectric constant of the sample decreases with the increase of frequency for all the samples. With the variation of temperature, DC resistivity of the samples showed that resistivity decreases with the increase of measuring temperature which indicates semiconducting nature.
Highlights
A switchable and well-off electrical polarization is performed by a ferroelectric crystal in which constituent atomic translocation is evolved
Its ferroelectric properties are impeded by enormous leakage current and low-lying resistivity
According to Hill [4], generation of net magnetization in Bismuth Ferrite begins from Fe atoms, where the net polarization of Bismuth Ferrite begins from Bi atoms
Summary
A switchable and well-off electrical polarization is performed by a ferroelectric crystal in which constituent atomic translocation is evolved. Bismuth ferrite (BFO) is a very wellknown multiferroic. For suppressing the leakage currents of bismuth ferrite, various doping techniques have been proposed. It has been proved that for increasing resistivity, and to rectify the overall properties of BFO, co-substitutions of Bi3+ by Nd3+ and partial substitution of Fe3+ by high valence V5+ and Mn4+ Ti4+ are necessary. Dielectric, Magnetic and Magneto-electric properties of BFO were exhibited, where Nb was used as co-doping material. Piezoresponse behavior of BFO was observed, when doping had been done by Nb. From other work, we have seen that Nd doped bismuth ferrite has capacity to minimize leakage current. In our research work, we will perform Structural, Dielectric and DC Electrical properties of BFO by doping it with only Nb
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