Electrical conduction in (Na0.125Bi0.125 Ba0.65Ca0.1)(Nd0.065Ti0.87Nb0.065)O3 ceramic)O3 ceramic |
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| Authors: | Syed Mahboob G. Prasad G. S. Kumar |
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| Affiliation: | (1) Department of Physics, Osmania University, 500 007 Hyderabad, India |
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| Abstract: | Polycrystalline ceramic samples of sodium bismuth titanate with simultaneous doping at A and B sites have been studied for the influence of these dopants on the electrical conduction mechanism. A.C. conductivity measurements were done on the prepared sample in a wide range of frequency and temperature. These studies revealed that the conduction in the sample arises due to hopping of bound charges. Four-term power law is used to characterize the frequency dependence of a.c. conductivity. From the temperature dependence of the exponents, the a.c. conduction in the samples is explained. |
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| Keywords: | A.C. studies oxygen vacancies translational hopping conduction reorientational hopping conduction |
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