Issue 4, 2020

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

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

Article information

Article type
Paper
Submitted
28 apr 2020
Accepted
15 jun 2020
First published
15 jun 2020
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2020,1, 880-890

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, 1, 880 DOI: 10.1039/D0MA00251H

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