Journal article


Compositional dependence of dielectric and ferroelectric properties in BiFeO3-BaTiO3 solid solutions


Publication Details
Author(s): Zhang H, Jo W, Wang K, Webber K
Publisher: Elsevier
Publication year: 2014
Volume: 40
Pages range: 4759-4765
ISSN: 0272-8842
Language: English

Abstract

Polycrystalline (1-x)BiFeO3-xBaTiO(3) (0.11 <= x <= 0.5) ceramics have been prepared by the solid-state reaction method to investigate their phase structure, dielectric, ferroelectric, and field-induced strain behaviors. The phase was found to change from rhombohedral in BiFeO3-rich compositions to pseudocubic at a BaTiO3 content of x=0.33. The room-temperature dielectric permittivity increased with increasing BaTiO3 content regardless of phase structure, except for a small dielectric permittivity peak additionally observed at x=0.33. The (1-x)BiFeO3-xBaTiO(3) solid solutions displayed a maximum in permittivity at temperatures (T-m) above 300 degrees C in the compositional range of 0.2 <= x <= 0.5. The frequency dependence of high-temperature dielectric properties suggests that BiFeO3-BaTiO3 is a relaxor ferroelectric. Normal ferroelectric loops and large electric field-induced strains were observed for the BiFeO3-BaTiO3 ceramics. The BiFeO3-BaTiO3 shows a promising candidate for high temperature ferroelectric applications. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.



How to cite
APA: Zhang, H., Jo, W., Wang, K., & Webber, K. (2014). Compositional dependence of dielectric and ferroelectric properties in BiFeO3-BaTiO3 solid solutions. Ceramics International, 40, 4759-4765. https://dx.doi.org/10.1016/j.ceramint.2013.09.020

MLA: Zhang, Hailong, et al. "Compositional dependence of dielectric and ferroelectric properties in BiFeO3-BaTiO3 solid solutions." Ceramics International 40 (2014): 4759-4765.

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