Meena, P. L. and Sreenivas, K. and Singh, M. R. and Kumar, Ashok and Singh, S. P. and Kumar, Ravi (2016) Ferri-magnetic order in Mn induced spinel Co3-xMnxO4 (0.1 <= x <= 1.0) ceramic compositions. Journal of Magnetism and Magnetic Materials, 403. pp. 193-198. ISSN 0304-8853

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Abstract

We report structural and magnetic properties of spinel Co3-xMnxO4 (x=0.1-1.0) synthesized by solid state reaction technique. Rietveld refinement analysis of X-ray diffraction (XRD) data, revealed the formation of polycrystalline single phase Co3-xMnxO4 without any significant structural change in cubic crystal symmetry with Mn substitution, except change in lattice parameter. Temperature dependent magnetization data show changes in magnetic ordering temperature, indicating formation of antiferromagnetic (AFM) and ferrimagnetic (FM) phase at low Mn concentration (x <= 0.3) and well-defined FM phase at high Mn concentration (x >= 0.5). The isothermal magnetization records established an AFM/ FM mixed phase for composition ranging 0.1 < x < 0.5 and with strong FM phase above x > 0.5.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Uncontrolled Keywords:	Ceramic Co3�xMnxO4 X-raydiffraction Rietveld refinement Magnetic properties
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	20 Nov 2017 07:27
Last Modified:	20 Nov 2017 07:27
URI:	http://npl.csircentral.net/id/eprint/2220

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