Sharma, Neha and Gaur, Anurag and Gaur, Umesh Kumar and Kotnala, R. K. (2014) Multiferroicity in Ba0.97La0.03Ti1-xNixO3 (0.03 <= x <= 0.07) ceramics. Journal of Alloys and Compounds, 615. pp. 135-140. ISSN 0925-8388

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Abstract

Pure and doped BaTiO3 (BTO) with different doping concentrations e.g. Ba0.97La0.03Ti1-xNixO3 (x = 0.03, 0.05, 0.07) were synthesized via sol-gel method. X-ray diffraction (XRD) patterns confirm the single phase formation for all samples. Polarization versus Electric field (P-E) loops for pure BTO shows non linear ferroelectric loop which tends towards lossy capacitor behavior as Ni doping concentration increases from x = 0.03 to 0.07. Moreover, it is observed that the value of dielectric constant and dielectric loss increases with Ni doping concentration and found maximum for x = 0.07 sample. Room temperature magnetization versus magnetic field CM-H) loops indicate the existence of ferromagnetism in x = 0.03 sample. However, x = 0.07 sample shows the presence of diamagnetic phase in this sample. Magnetoelectric study reveals the presence of magnetoelectric coupling only for pure and x = 0.03 and 0.05 sample. However, the value of quadratic magnetoelectric coefficient (beta) is maximum for x = 0.03 sample, which is 3.34 x 10(-4) mu V/cm Oe(2).

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	Ferroelectricity Ferromagnetism Magnetoelectric coupling
Subjects:	Chemistry Materials Science Metallurgy & Metallurgical Engineering
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	28 Oct 2015 06:06
Last Modified:	28 Oct 2015 06:06
URI:	http://npl.csircentral.net/id/eprint/1417

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