Magnetic Properties of MFeCrO4 (M = Co/Ni) Prepared by Solution Combustion Method

Thomas, Nygil and Sudheesh, V D and Choudhary, Harish Kumar and Sahoo, Balaram and Nail, Swapna S and Lakshmi, N and Sebastian, Varkey (2019) Magnetic Properties of MFeCrO4 (M = Co/Ni) Prepared by Solution Combustion Method. In: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 32 (9, SI). pp. 2973-2979.

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Abstract

Single phase MFeCrO4 (M = Co/Ni) nanosized samples are prepared by solution combustion method using glycine as fuel. Lattice parameter obtained after Rietveld refinement of the powder x-ray diffraction pattern of CoCrFeO4 and NiCrFeO4 samples are 8.374 and 8.325 angstrom and corresponding crystallite sizes are 40 and 27 nm, respectively. FTIR spectra of both samples show tetrahedral and octahedral metal oxygen bond stretching peaks at 596 and 488 cm(-1), indicating spinel phase formation. DC magnetisation study indicates that both samples are ferrimagnetic at room temperature, with CoCrFeO4 having a higher value of saturation magnetisation. Mossbauer spectra indicate the presence of magnetic relaxation in the samples. Also, the strength of interaction with nearest neighbour Fe3+ cations is higher in NiCrFeO4.

Item Type:	Journal Article
Publication:	JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Publisher:	SPRINGER
Additional Information:	Copyright of this article belongs to SPRINGER
Keywords:	Spinel oxides; Combustion synthesis; Magnetic materials; Mossbauer spectroscopy
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	29 Nov 2019 06:46
Last Modified:	29 Nov 2019 06:46
URI:	http://eprints.iisc.ac.in/id/eprint/64020

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