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http://dx.doi.org/10.12989/amr.2013.2.1.001

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)
Publication Information
Advances in materials Research / v.2, no.1, 2013 , pp. 1-13 More about this Journal
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
ceramics; electronic materials; dielectric properties; electrical properties; impedance spectroscopy; electrical conductivity;
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