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Multiferroism and magnetoelectric coupling in single-phase Yb and X (X = Nb, Mn, Mo) co-doped BiFeO3 ceramics

Journal of Sol-Gel Science and Technology, ISSN: 1573-4846, Vol: 89, Issue: 3, Page: 713-721
2019
  • 22
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 0
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Metrics Details

  • Citations
    22
    • Citation Indexes
      22
  • Captures
    17

Article Description

Abstract: A series of Yb and X co-doped BiFeO (X = Nb, Mn, Mo) and undoped BiFeO polycrystalline ceramics were prepared by sol-gel method. The X-ray diffraction pattern confirmed the rhombohedral perovskite structure for all the ceramics. Reitveld refinement results bring out the impact of doping on the structural distortion. The Transmission Electron Micrograph observation reveals the nanostructure of the doped samples. Well saturated ferromagnetic hysteresis curves were obtained for the doped samples in contrary to undoped BiFeO and this is attributed to the distortion of spin spiral structure. The doped ceramics exhibited improved ferroelectric parameters and very low leakage current density of the order of 10 to 10 A/cm , which is remarkably lower than that of undoped BFO. Remarkable dielectric properties were exhibited for the doped samples. An abrupt noticeable enhancement of magetoelectric coupling for the doped samples in comparison with the undoped BiFeO has been demonstrated in our work. [Figure not available: see fulltext.].

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