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Size dependent morphology, magnetic and dielectric properties of BiFeO3 nanoparticles

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Abstract

Nano-sized BiFeO3 were synthesized by sol-gel auto combustion method and report the effect of different annealing temperature (400 °C, 500 °C, 600 °C) on phase formation, morphology, magnetic and dielectric properties of synthesized bismuth ferrite (BiFeO3) nanoparticles. The phase formation of BFO nanoparticles were confirmed by X-ray diffraction pattern. Further, significant increment in particle size with increasing annealing temperature was estimated by field emission electron microscopy (FESEM). Magnetization curve showed the soft ferromagnetic behavior of the samples annealed at 400 °C and 500 °C that was explained on the basis of disturbance of spiral modulated long range antiferromagnetic order of bulk BFO. Dielectric response revealed decrease in dielectric constant with increasing annealing temperature. BFO is a room-temperature multiferroic material so it is potential candidate for various applications viz. Water waste treatment, gas sensors and photovoltaic cells in rural areas.

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Authors and Affiliations

  1. Department of Physics, Deenbandhu Chhotu Ram University of Science and Technology Murthal, 131039, Haryana, India

    Nidhi Sheoran, Monika Saini, Ashok Kumar & Vinod Kumar

  2. Department of Nanosciences and Materials, Central University of Jammu, Jammu and Kashmir, India

    Tanuj Kumar

  3. Department of Physics, Pt. NRS Govt. College, Rohtak, Haryana, India

    Mukesh Sheoran

Authors
  1. Nidhi Sheoran
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  2. Monika Saini
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  3. Ashok Kumar
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  4. Vinod Kumar
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  5. Tanuj Kumar
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  6. Mukesh Sheoran
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Correspondence to Nidhi Sheoran or Vinod Kumar.

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Sheoran, N., Saini, M., Kumar, A. et al. Size dependent morphology, magnetic and dielectric properties of BiFeO3 nanoparticles. MRS Advances 4, 1659–1665 (2019). https://doi.org/10.1557/adv.2019.167

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  • DOI: https://doi.org/10.1557/adv.2019.167

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