Applied Physics A

, 124:746 | Cite as

Investigation of structural and electrical properties of Gd3+ ions modified BaZr0.05Ti0.95O3 ceramic

  • G. Nag Bhargavi
  • Ayush Khare
  • Tanmaya BadapandaEmail author
  • M. Shahid Anwar


Gadolinium (Gd) doped BaZr0.05Ti0.95O3 ceramic samples with general formula Ba(1−x)Gd2x/3Zr0.05Ti0.95O3 were prepared by the solid state reaction method. The effect of Gd on the structural and dielectric behaviours of BaZr0.05Ti0.95O3 have been studied in detail. X-ray diffraction studies revealed that site substitution by Gd3+ ions had a great impact on the site occupancy of the BaZr0.05Ti0.95O3 pervoskite. The lattice parameters increased up to x = 0.03 followed by a decrease at higher concentration showing both donor and acceptor behaviours of Gd in BaZr0.05Ti0.95O3 matrix. Structural changes were studied by Raman spectroscopy also, which showed the non-linear shifting of the modes with increasing doping concentration. The scanning electron microscopy images showed a drastic modification in grain size with increasing Gd concentration. The effect of substitution of Gd3+ ions in BaZr0.05Ti0.95O3 was investigated by means of dielectric studies and the dielectric behaviour was explained using self-compensation model. The diffusivity in the samples was studied by modified Curie–Weiss law.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • G. Nag Bhargavi
    • 1
  • Ayush Khare
    • 1
  • Tanmaya Badapanda
    • 2
    Email author
  • M. Shahid Anwar
    • 3
  1. 1.Department of PhysicsNational Institute of TechnologyRaipurIndia
  2. 2.Nanophotonics Laboratory, Department of PhysicsC.V. Raman College of EngineeringBhubaneswarIndia
  3. 3.Colloids and Materials Chemistry DepartmentCSIR-Institute of Minerals and Materials TechnologyBhubaneswarIndia

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