Crystal structure and magnetic properties of (Ni1–xZnx)Fe2O4 composition graded ceramic

A homogeneous multilayered graded (Ni 1– x Zn x )Fe 2 O 4 ( x = 0–0.2) ferrite-based ceramic is prepared via thick-film technology using the two-stage sintering mode. The unit cell parameters and main magnetic characteristics, such as the Curie temperature, specific magnetization, and magnetic susce...

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Bibliographic Details
Published in:Physics of the solid state 2016-10, Vol.58 (10), p.1975-1980
Main Authors: Shut, V. N., Syrtsov, S. R., Lobanovskii, L. S., Yanushkevich, K. I.
Format: Article
Language:English
Subjects:
Attenuation
Ceramics
Composition
Crystal structure
Curie temperature
Ferrites
Hysteresis loops
Liquid nitrogen
Magnetic moments
Magnetic permeability
Magnetic properties
Magnetism
Magnetization
Parameters
Physics
Physics and Astronomy
Room temperature
Solid State Physics
Unit cell
Zinc
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Summary:A homogeneous multilayered graded (Ni 1– x Zn x )Fe 2 O 4 ( x = 0–0.2) ferrite-based ceramic is prepared via thick-film technology using the two-stage sintering mode. The unit cell parameters and main magnetic characteristics, such as the Curie temperature, specific magnetization, and magnetic susceptibility are determined; the magnetic hysteresis loops are studied. The temperature and field dependences of specific magnetization and magnetic susceptibility are analyzed. The increasing zinc content in ceramic is shown to favor a rise in the specific magnetization from 45.30 to 70.95 A m 2 kg –1 at room temperature and in the magnetic moment from 2.09 to 3.48 μ B near the liquid nitrogen temperature. The augmentation of the unit cell parameter a by ~0.8% causes the attenuation of magnetic interplay between the cations and a decrease in the Curie temperature from 790 to 720 K. The magnetization in multilayered structures is examined under the external magnetic field applied parallel and perpendicular to the layer plain. No magnetic hysteresis loop shift is found in the different geometries of the experiment, and the probable causes of its lack are analyzed in the bulk magnetic composition graded materials.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783416100358