, Volume 42, Issue 24, pp 10275-10283
Date: 05 Sep 2007

Impedance spectroscopy and conductivity studies on B site modified (Na0.5Bi0.5)(Nd x Ti1 − 2x Nb x )O3 ceramics

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Abstract

Nd and Nb doped sodium bismuth titanate ceramics have been synthesized and characterized. Structural properties were obtained based on the XRD pattern analysis, indicating rhombohedral symmetry at room temperature. Impedance and conductivity (DC and AC) studies were done on polycrystalline samples. The results indicate that DC and AC conduction occurs by different mechanism in each case. The possible mechanism in the present case is discussed.