Advances in materials Research

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Electrical properties of (Na0.5Bi0.5)(Zr0.75Ti0.25)O3 ceramic

  • Lily, Lily (University Department of Physics, T. M. Bhagalpur University) ;
  • Yadav, K.L. (Department of Physics, Indian Institute of Technology) ;
  • Prasad, K. (University Department of Physics, T. M. Bhagalpur University)
  • Received : 2012.06.15
  • Accepted : 2012.11.14
  • Published : 2013.03.25
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Abstract

Lead-free compound $(Na_{0.5}Bi_{0.5})(Zr_{0.75}Ti_{0.25})O_3$ was prepared using conventional ceramic technique at $1070^{\circ}C$/4h in air atmosphere. X-ray diffraction analysis showed the formation of single-phase orthorhombic structure. Permittivity data showed low temperature coefficient of capacitance ($T_{CC}{\approx}5%$) up to $100^{\circ}C$. Complex impedance studies indicated the presence of grain boundary effect, non-Debye type dielectric relaxation and evidences of a negative temperature coefficient of resistance. The ac conductivity data were used to evaluate the density of states at Fermi level and apparent activation energy of the compound.

Keywords

References

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