Ranjan, Rajeev ; Kalyani, Ajay Kumar ; Garg, Rohini ; Krishna, P.S.R. (2009) Structure and phase transition of the (1−x)PbTiO3−(x)BiAlO3 system Solid State Communications, 149 (45-46). pp. 2098-2101. ISSN 0038-1098
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Official URL: http://doi.org/10.1016/j.ssc.2009.08.013
Related URL: http://dx.doi.org/10.1016/j.ssc.2009.08.013
Abstract
The system (1−x)PbTiO3−(x)BiAlO3 has been studied with regard to its structure and phase transition behaviour using x-ray, neutron and dielectric measurements. The structure is tetragonal within the solid solubility limit . Interatomic distance analysis revealed that the Pb–O bond lengths remain unaffected and the only the Ti–O lengths are altered by BiAlO3 substitution. The results are suggestive of a crossover from and A-site & B site driven ferroelectric system for to a dominant A-site driven ferroelectric system for higher . This cross-over is brought about by (i) a reduction in the contribution to the ferroelectric stability from B-site cations due to dilution of the Ti-sublattice by Al and (ii) a reinforcement to the stability of the ferroelectric state by the A-site cations by the Bi+3 cations.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 123034 |
| Deposited On: | 02 Sep 2021 11:12 |
| Last Modified: | 02 Sep 2021 11:12 |
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