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Studies on magnetic and magnetoelectric properties of the NiFe2O4–Ba0.7Sr0.3TiO3 composites

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Abstract

The magnetic and magnetoelectric properties of magnetoelectric (ME) composites consisting of with nickel ferrite (NiFe2O4) and barium strontium titanate (Ba0.7Sr0.3TiO3) were investigated. The composites were prepared by standard double sintering ceramic method. The X-ray diffraction analysis was carried out to confirm the phases formed during sintering and also to calculate the lattice parameters. The hysteresis measurements were done to determine saturation magnetization (Ms), remenance magnetization (Mr) and coercivity (Hc) of the samples. The magnetoelectric voltage coefficient (dE/dH)H was studied as a function of intensity of the magnetic field. The measured magnetoelectric (ME) response demonstrated strong dependence on the volume fraction of NiFe2O4 and the applied magnetic field. A large ME voltage coefficient of about 560 μVcm−1Oe−1 was observed for 15% NiFe2O4 + 85% Ba0.7Sr0.3TiO3 composite.

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Acknowledgement

The work was carried out with financial assistance from UGC, New Delhi under UGC-DRS-II Program.

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  1. Composite Materials Laboratory, Department of Physics, Shivaji University, Kolhapur, 416 004, India

    D. R. Patil & B. K. Chougule

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  1. D. R. Patil
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  2. B. K. Chougule
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Correspondence to B. K. Chougule.

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Patil, D.R., Chougule, B.K. Studies on magnetic and magnetoelectric properties of the NiFe2O4–Ba0.7Sr0.3TiO3 composites. J Mater Sci: Mater Electron 20, 398–402 (2009). https://doi.org/10.1007/s10854-008-9742-x

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  • DOI: https://doi.org/10.1007/s10854-008-9742-x

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