Mossbauer spectroscopy of NiFe2O4 nanoparticles: The effect of Ni2+ in the Fe3+ local microenvironment in both tetrahedral and octahedral sites

Ushakov, M V and Senthilkumar, B and Selvan, Kalai R and Felner, I and Oshtrakh, M I (2017) Mossbauer spectroscopy of NiFe2O4 nanoparticles: The effect of Ni2+ in the Fe3+ local microenvironment in both tetrahedral and octahedral sites. In: MATERIALS CHEMISTRY AND PHYSICS, 202 . pp. 159-168.

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Abstract

Two samples of combustion synthesized nickel ferrite nanoparticles were characterized using X-ray diffraction, scanning and transmission electron microscopy, magnetization measurements and MOssbauer spectroscopy with a high velocity resolution. It was shown that MOssbauer spectra of nickel ferrite can be well fitted by using ten magnetic sextets related to the different numbers of Ni2+ cations in the Fe3+ local microenvironments in both tetrahedral and octahedral sites supported by calculations of such probabilities. it was shown that increase of the number of Ni2+ cations in the Fe-57 local microenvironment around both sites leads to decrease of the hyperfine field. (C) 2017 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	MATERIALS CHEMISTRY AND PHYSICS
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	17 Nov 2017 06:27
Last Modified:	17 Nov 2017 06:27
URI:	http://eprints.iisc.ac.in/id/eprint/58247

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