Kumar, Sanjeev and Singh, Vaishali and Aggarwal, Saroj and Mandal, Uttam Kumar and Kotnala, R. K. (2012) Monodisperse Co, Zn-Ferrite nanocrystals: Controlled synthesis, characterization and magnetic properties. Journal of Magnetism and Magnetic Materials, 324 (22). 3683-3689. ISSN 0304-8853

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Abstract

CoxZnyFe3-x-yO4 ferrite (x=1 to 0; y=0 to1) nanocrystals have been synthesized by reverse microemulsion method. The nanocrystals are then comprehensively characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Field emission transmission electron microscopy (FETEM), and magnetic properties were measured by using Vibrating sample magnetometer. X-ray analysis showed that all the crystals were cubic spinel. The lattice constant increased with the increase in Zn substitution. FETEM reveals that particle size varies in the range from 3 to 6 nm. As the concentration of Zn increases the magnetic behavior varies from ferromagnetic at y=0 and 0.2 to superparamagnetic to paramagnetic at y=1. The Curie temperature decreases with increasing concentration of Zn.

Item Type:	Article
Additional Information:	copyright for this article belongs to M/s Elsevier
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	19 Aug 2026 11:08
Last Modified:	19 Aug 2026 11:08
URI:	https://npl.csircentral.net/id/eprint/3488

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