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Cation distribution, magnetic and hyperfine interaction studies of Ni–Zn spinel ferrites: role of Jahn Teller ion (Cu2+) substitution

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Abstract

This study reports cation distribution, magnetic, and hyperfine interaction studies of Cu2+-substituted mixed Ni–Zn nano-spinel ferrites prepared by combustion technique. X-ray diffraction and electron microscopy were used to study the structural and morphological aspects of all the samples. Rietveld refined diffraction patterns exhibited a cubic-spinel lattice structure with the Fd3m space group for all the samples. Morphological investigations revealed the spherical morphology of particles with some agglomeration. The magnetic properties investigated at 300 K and 5 K implied a soft ferromagnetic character of all the samples. The magnetization at 5 K progressively enhanced due to surface effects. Field-cooled and zero-field-cooled measurements indicated net irreversibility for all the samples. Hyperfine interaction studies revealed the ferrimagnetic nature of Cu2+-substituted mixed Ni–Zn spinel nano-ferrites. All the obtained results show that the prepared nanoparticles are useful for magnetic fluid hyperthermia and other bio-applications.

Graphical abstract: Cation distribution, magnetic and hyperfine interaction studies of Ni–Zn spinel ferrites: role of Jahn Teller ion (Cu2+) substitution

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Article information


Submitted
28 Apr 2020
Accepted
15 Jun 2020
First published
15 Jun 2020

This article is Open Access

Mater. Adv., 2020, Advance Article
Article type
Paper

Cation distribution, magnetic and hyperfine interaction studies of Ni–Zn spinel ferrites: role of Jahn Teller ion (Cu2+) substitution

A. V. Humbe, J. S. Kounsalye, S. B. Somvanshi, A. Kumar and K. M. Jadhav, Mater. Adv., 2020, Advance Article , DOI: 10.1039/D0MA00251H

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