Sharma, Neha and Gaur, Anurag and Kotnala, R. K. (2015) Signature of weak ferroelectricity and ferromagnetism in Mn doped CuO nanostructures. Journal of Magnetism and Magnetic Materials, 377. 183-189 . ISSN 0304-8853

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Abstract

Weak ferroelectricity and ferromagnetism have been observed in Cu1-xMnxO (x=0, 0.03, 0.05, 0.07) nanostructures synthesized by the hydrothermal method. The X-ray diffraction analysis indicates that Mn substituted at Cu site in the CuO lattice and confirms the single phase formation for all samples. Polarization verses electric field (P-E) loops show lossy capacitor behavior for all the samples; however the value of polarization decreases by Mn doping. The dielectric constant and loss tangent is found maximum for pure CuO sample and decreases with Mn content. Room temperature magnetization versus magnetic held (M-H) loops indicate the existence of ferromagnetism in pure and x=0.03 samples. Further, paramagnetic behavior is observed for x=0.05 and 0.07 samples. The coexistence of both magnetic and ferroelectric order is found for Cu-1 xMnxO (x=0.03) sample, however, no magnetoelectric coupling is observed at room temperature.

Item Type:	Article
Uncontrolled Keywords:	Ferromagnetism Ferroelectricity Hydrothermalmethod
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	13 Oct 2016 07:25
Last Modified:	13 Oct 2016 07:25
URI:	http://npl.csircentral.net/id/eprint/1984

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