Room-temperature magnetoelectric properties of Fe doped BaZr 0.05Ti0.95O3

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[1] Kumari, Mukesh
[2] Prakash, Chandra
[3] Chatterjee, Ratnamala
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| 1600年 / American Institute of Physics Inc.卷 / 113期
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To explore the magnetoelectric effect in lead free bulk ceramics; solid solutions of BaZr0.05(FexTi1-3x/4) 0.95O3 have been synthesized using conventional solid state reaction route with x 0.000 to 0.020 in steps of 0.005. A small amount of Fe content shows an immense effect on properties of barium zirconium titanate. Room temperature X-ray diffraction studies substantiate the formation and purity of these polycrystalline samples in an orthorhombic crystal system. Temperature dependent dielectric study revealed a decrease in ferroelectric Curie temperature with a decrease in dielectric constant values as x varied from 0.000 to 0.020. Ferroelectricity is still maintained and well saturated loops are observed with Fe substitution at these levels; although the remnant polarization Pr values decrease substantially with increasing Fe content. The best value of magnetoelectric coupling coefficient (α) at room temperature is found to be 145.30 mV/cm.Oe for x 0.015 sample. In conclusion; in a non-Pb based simple perovskite system a reasonably large magnetoelectric coupling is demonstrated. © 2013 American Institute of Physics;
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