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http://nopr.niscair.res.in/handle/123456789/1965| Title: | Electrical properties of relaxor ferroelectric PMCT-PT-ZnO ceramic |
| Authors: | Prasad, S Prasad, K Choudhary, S N Sinha, T P |
| Keywords: | Relaxor ferroelectrics Diffuse phase transition Transition temperature Dielectric properties |
| Issue Date: | Apr-2008 |
| Publisher: | CSIR |
| Abstract: | Polycrystalline samples of 0.85Pb[(Mg₂/₃Cd₁/₃)₁/₃Ta₂/₃]O₃-0.15PbTiO₃ with 7.5% of ZnO having a tetragonal perovskite type structure have been prepared using high temperature solid-state reaction method. Dielectric studies indicate relaxor behaviour with diffuse phase transition. High value of Ɛm > 3000 is realized with Tm (phase transition temperature) at 43ºC at 1 kHz. Fitting of dielectric data using Vogel-Fulcher relationship indicates that the system is analogous to magnetic relaxation in spin-glass system with polarization fluctuations above a static freezing temperature. Cole-Cole analyses showed the non-Debye type relaxation in the system. The electrical conduction in the system may be due to the short-range translational hopping of charge carriers. |
| Description: | 163-166 |
| URI: | http://hdl.handle.net/123456789/1965 |
| ISSN: | 0971-4588 |
| Appears in Collections: | IJEMS Vol.15(2) [April 2008] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 15(2) 163-166.pdf | 262.51 kB | Adobe PDF | View/Open |
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