Jha, Priyanka A. and Jha, Pardeep K. and Jha, A. K. and Kotnala, R. K. and Dwivedi, R. K. (2014) Phase transformation and two-mode phonon behavior of (1-x) [Ba Zr0.025Ti0.975O3]-(x) [BiFeO3] solid solutions. Journal of Alloys and Compounds, 600. pp. 186-192. ISSN 0925-8388

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Abstract

In the present work the compounds with x <= 1.0 in the system (1 - x) [BaZr0.025Ti0.975O3]-(x) [BiFeO3] have been synthesized using solid state reaction method. X-ray diffractograms and Raman spectra reveal the formation of single phase solid solution. The wave number shift and intensity ratio of A-O and B-O bonds in Raman spectra reveals structural changes with the concentration of bismuth ferrite. The linear dependence of the intensity ratio at B-sites i.e. I-(Fe O)/I-(Ti O) on the concentration of substituent suggests solid solution formation with two phonon mode behavior. A broad minima in the plot of Intensity ratio at A-sites (I-(Ba O)/I-(Bi (O))) with x has been observed for the compositions range 0.6 <= x <= 0.7. A correlation between the variation of the intensity ratio at A-sites and B-sites with x has been established to explain multiferroicity in these samples. P-E and M-H measurements indicate that the sample with x = 0.6 exhibits prominent multiferroic properties.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	Multiferroics X-ray diffraction Raman spectroscopy
Subjects:	Chemistry Materials Science Metallurgy & Metallurgical Engineering
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	30 Oct 2015 07:06
Last Modified:	30 Oct 2015 07:06
URI:	http://npl.csircentral.net/id/eprint/1459

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