http://repository.iitr.ac.in/handle/123456789/13889| Title: | Glass-like response of (Na1/2Bi1/2)TiO3-WO3 ceramic |
| Authors: | Prasad K. Kumari K. Lily Chandra K.P. Yadav, Kamlesh Kumar Sen S. |
| Published in: | Solid State Communications |
| Abstract: | Polycrystalline sample of 2.5 wt% WO3 added (Na1/2Bi1/2)TiO3 was prepared using a high-temperature solid-state reaction method at 1050 {ring operator}C and subsequent sintering at 1090 {ring operator}C in oxygen atmosphere. XRD analysis indicated the formation of a single-phase orthorhombic structure. Dielectric studies revealed the relaxor behaviour. The addition of WO3 to NBT shifts phase transition temperature as well as depolarization temperature to higher side which is desirable for piezoelectric applications. The frequency dependence of the temperature of the permittivity maximum has been modeled using Vogel-Fulcher relation. The dielectric relaxation in the system is found to be analogous to the magnetic relaxation in spin-glass system. The relaxor behaviour in the present system has also been examined through admittance spectroscopy. © 2007 Elsevier Ltd. All rights reserved. |
| Citation: | Solid State Communications (2007), 144(43862): 42-45 |
| URI: | https://doi.org/10.1016/j.ssc.2007.07.024 http://repository.iitr.ac.in/handle/123456789/13889 |
| Issue Date: | 2007 |
| Keywords: | A. Disordered systems A. Ferroelectrics D. Dielectric response |
| ISSN: | 381098 |
| Author Scopus IDs: | 7401617564 23091285300 16550446900 15070444700 7005825645 57201072179 |
| Author Affiliations: | Prasad, K., Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India Kumari, K., Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India Lily, Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India Chandra, K.P., Department of Physics, S.M. College (T. M. Bhagalpur University), Bhagalpur, 812 001, India Yadav, K.L., Department of Physics, Indian Institute of Technology, Roorkee, 247 667, India Sen, S., National Metallurgical Laboratory, Jamshedpur, 831 007, India |
| Corresponding Author: | Prasad, K.; Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India; email: k_prasad65@yahoo.co.in |
| Appears in Collections: | Journal Publications [PH] |
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