http://repository.iitr.ac.in/handle/123456789/13744| Title: | Electrical properties of a lead-free perovskite ceramic: (Na 0.5Sb0.5)TiO3 |
| Authors: | Prasad K. Lily Kumari K. Chandra K.P. Yadav, Kamlesh Kumar Sen S. |
| Published in: | Applied Physics A: Materials Science and Processing |
| Abstract: | Polycrystalline (Na0.5Sb0.5)TiO3 was prepared using a high-temperature solid-state reaction method. An XRD analysis indicated the formation of a single-phase monoclinic structure. Complex impedance studies revealed the presence of grain boundary effects from 300 °C onwards. Also, the dielectric relaxation in the system was found to be of a non-Debye type. The ac conductivity data were used to evaluate the density of states at the Fermi level, the minimum hopping length and activation energy of the compound. The dc electrical and thermal conductivities of grain and grain boundary have been assessed. The correlated barrier hopping model was found to successfully explain the mechanism of charge transport in (Na 0.5Sb0.5)TiO3. © Springer-Verlag 2007. |
| Citation: | Applied Physics A: Materials Science and Processing (2007), 88(2): 377-383 |
| URI: | https://doi.org/10.1007/s00339-007-3989-6 http://repository.iitr.ac.in/handle/123456789/13744 |
| Issue Date: | 2007 |
| ISSN: | 9478396 |
| Author Scopus IDs: | 57191917084 16550446900 23091285300 15070444700 7005825645 57201072179 |
| Author Affiliations: | Prasad, K., Materials Research Laboratory, University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812007, India Lily, Materials Research Laboratory, University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812007, India Kumari, K., Materials Research Laboratory, University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812007, India Chandra, K.P., Department of Physics, S.M. College (T.M. Bhagalpur University), Bhagalpur 812001, India Yadav, K.L., Department of Physics, Indian Institute of Technology, Roorkee 247667, India Sen, S., National Metallurgical Laboratory, Jamshedpur 831007, India |
| Corresponding Author: | Prasad, K.; Materials Research Laboratory, University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812007, India; email: k_prasad65@yahoo.co.in |
| Appears in Collections: | Journal Publications [PH] |
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