Competing A-site and B-site driven ferroelectric instabilities in the (1-x)PbTiO3-(x)BiAlO3 system

Kalyani, Ajay Kumar and Garg, Rohini and Ranjan, Rajeev (2009) Competing A-site and B-site driven ferroelectric instabilities in the (1-x)PbTiO3-(x)BiAlO3 system. In: Applied physics letters, 94 (20). 202903-1-202903-3.

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Abstract

The system (1-x)PbTiO3-(x)BiAlO3 has been investigated with regard to its solid solubility, crystal structure, microstructure, and ferroelectric transition. The unit cell volume and the tetragonality exhibit anomalous behavior near x=0.10. The Curie point (T-C) of PbTiO3 was however found to be nearly unchanged. The study seems to suggest that the decrease in the stability of the ferroelectric state due to dilution of the Ti-sublattice by smaller sized Al+3 ions is compensated by the increase in the ferroelectric stability by the Bi+3 ions.

Item Type:	Journal Article
Publication:	Applied physics letters
Publisher:	American institute of physics
Additional Information:	Copyright for this article belongs to American institute of physics.
Keywords:	bismuth compounds;crystal structure;ferroelectric materials; ferroelectric transitions;lead compounds.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	14 Jul 2009 14:13
Last Modified:	19 Sep 2010 05:34
URI:	http://eprints.iisc.ac.in/id/eprint/20855

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