Room temperature structural, morphological, and enhanced ferroelectromagnetic properties of xBa(0.7)Ca(0.3)TiO(3)-(1-x)BaFe0.2Ti0.8O3 multiferroic composites
authors Puli, VS; Coondoo, I; Panwar, N; Srinivas, A; Katiyar, RS
nationality International
journal JOURNAL OF APPLIED PHYSICS
keywords THIN-FILMS; CERAMICS; BATIO3
abstract Iron substituted barium titanate (BaTiO3, BT) has been found to exhibit both ferroelectric and ferromagnetic behavior at room temperature [Xu et al., Phys. Rev. B 79, 134109 (2009)]. However, ferroelectric properties of Fe-doped BT are not as pronounced as those of pure BT. It happens because iron doping causes hexagonal phase formation which inhibits ferroelectricity. We observed enhanced ferroelectric properties in x(Ba0.7Ca0.3)TiO3/(1-x)Ba(Fe0.2Ti0.8)O-3 [(BCT-BFT) where x = 0.10, 0.15, 0.20] composites while maintaining the ferromagnetic characteristics. Structural and morphological studies reveal that composite with low content of BCT possesses dominating hexagonal phase, whereas tetragonal phase is more prominent in composite with higher BCT concentration. Such composite systems with enhanced ferroelectric and ferromagnetic behavior may be useful for room temperature multiferroic devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4714657]
publisher AMER INST PHYSICS
issn 0021-8979
year published 2012
volume 111
issue 10
digital object identifier (doi) 10.1063/1.4714657
web of science category Physics, Applied
subject category Physics
unique article identifier WOS:000305363700003
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