Structural and magnetic characterizations of NixCu0.8-x Zn0.2Fe2O4 spinel ferrites

The Ni-Cu-Zn ferrites are one of the most exciting spinel oxides so far because of its diverse applications. In the current study, the ratio of nickel and copper was varied keeping the concentration of zinc constant primarily aiming to examine its effect on cation distribution as well as structural...

Full description

Saved in:
Bibliographic Details
Published in:Ferroelectrics 2021, Vol.572 (1), p.36-50
Main Authors: Elius, I. B., Hossain, S., Aktar, M. S., Zakaria, A. K. M., Kamal, I., Hoque, S. M., Azad, A. K.
Format: Article
Language:English
Subjects:
Atomic properties
cation distribution
Cations
Copper
Ferrites
Ferromagnetism
Magnetic measurement
Magnetic moments
Magnetic properties
Magnetism
Magnetometers
Neutron diffraction
Nickel
Oxygen atoms
Parameters
Spinel
spinel ferrite
Zinc
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Ni-Cu-Zn ferrites are one of the most exciting spinel oxides so far because of its diverse applications. In the current study, the ratio of nickel and copper was varied keeping the concentration of zinc constant primarily aiming to examine its effect on cation distribution as well as structural and magnetic properties. The samples were synthesized via the conventional solid state sintering method at a temperature of 1050 °C then subjected to neutron diffraction studies. The magnetic properties were measured using a vibrating sample magnetometer (VSM) which complements the magnetic measurements from the neutron diffraction experiments. The ferromagnetic behaviors of these Ni-Cu-Zn ferrites were explained using the Y-K model and the canting of the magnetic moments were also measured. The lattice parameter 'a' was seen to reduce which results from the replacement of large Cu + ions (0.73 with the smaller ionic radius of (0.69 ). To accommodate a large number of cations in the spinel lattice, the oxygen atoms restructure themselves as a result oxygen position parameter increased. The net magnetic moment per unit formula decreases as the Ni content is increased up to a level, after which the net moment increased.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2020.1868871