Investigation of structural and magnetic properties of polycrystalline Ni0.50Zn0.50-xMgxFe2O4 spinel ferrites

A. K.M. Akther Hossain, T. S. Biswas, Takeshi Yanagida, Hidekazu Tanaka, Hitoshi Tabata, Tomoji Kawai

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The structural and magnetic properties of Mg substituted Ni0.50Zn0.50-xMgxFe2O4 (where x = 0.0, 0.10, 0.20, 0.30, 0.40 and 0.50) sintered at various temperatures have been studied thoroughly. X-ray diffraction patterns of the samples showed single-phase cubic spinel structure without any detectable impurity phases. The lattice parameter decreases linearly with increase of Mg contents obeying Vegard's law. The bulk density, average grain size and initial permeability, μi, decrease with increasing Mg substitution but increase with increasing sintering temperature for a particular composition. The highest initial permeability and quality factor, Q, are obtained for the Ni0.50Zn0.50Fe2O4 sintered at 1350 and 1250 °C, respectively. Domain wall relaxation frequency, fr, and Néel temperature, TN, are found to increase with Mg substitution. It is observed that when Zn is completely substituted by Mg in Ni0.50Zn0.50-xMgxFe2O4, the TN is increased by 106% and fr by 178%. On the other hand, μi decreases by 86%. It is observed that all samples are in ferrimagnetic state at room temperature. The number of Bohr magneton, n(μB), decreases with increasing Mg substitution which is explained by probable cation distribution in the spinel crystal structure. Possible explanation for the observed features of microstructure, initial permeability, DC magnetization and Néel temperature of the studied samples are discussed.

Original languageEnglish
Pages (from-to)461-467
Number of pages7
JournalMaterials Chemistry and Physics
Volume120
Issue number2-3
DOIs
Publication statusPublished - Apr 15 2010

Fingerprint

Ferrites
spinel
Structural properties
ferrites
Magnetic properties
magnetic properties
permeability
substitutes
Substitution reactions
Bohr magneton
Temperature
temperature
Domain walls
domain wall
Q factors
lattice parameters
sintering
diffraction patterns
grain size
direct current

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Investigation of structural and magnetic properties of polycrystalline Ni0.50Zn0.50-xMgxFe2O4 spinel ferrites. / Akther Hossain, A. K.M.; Biswas, T. S.; Yanagida, Takeshi; Tanaka, Hidekazu; Tabata, Hitoshi; Kawai, Tomoji.

In: Materials Chemistry and Physics, Vol. 120, No. 2-3, 15.04.2010, p. 461-467.

Research output: Contribution to journalArticle

Akther Hossain, A. K.M. ; Biswas, T. S. ; Yanagida, Takeshi ; Tanaka, Hidekazu ; Tabata, Hitoshi ; Kawai, Tomoji. / Investigation of structural and magnetic properties of polycrystalline Ni0.50Zn0.50-xMgxFe2O4 spinel ferrites. In: Materials Chemistry and Physics. 2010 ; Vol. 120, No. 2-3. pp. 461-467.
@article{e9bc55dccc8a433297a4e2ece4f48811,
title = "Investigation of structural and magnetic properties of polycrystalline Ni0.50Zn0.50-xMgxFe2O4 spinel ferrites",
abstract = "The structural and magnetic properties of Mg substituted Ni0.50Zn0.50-xMgxFe2O4 (where x = 0.0, 0.10, 0.20, 0.30, 0.40 and 0.50) sintered at various temperatures have been studied thoroughly. X-ray diffraction patterns of the samples showed single-phase cubic spinel structure without any detectable impurity phases. The lattice parameter decreases linearly with increase of Mg contents obeying Vegard's law. The bulk density, average grain size and initial permeability, μi′, decrease with increasing Mg substitution but increase with increasing sintering temperature for a particular composition. The highest initial permeability and quality factor, Q, are obtained for the Ni0.50Zn0.50Fe2O4 sintered at 1350 and 1250 °C, respectively. Domain wall relaxation frequency, fr, and N{\'e}el temperature, TN, are found to increase with Mg substitution. It is observed that when Zn is completely substituted by Mg in Ni0.50Zn0.50-xMgxFe2O4, the TN is increased by 106{\%} and fr by 178{\%}. On the other hand, μi′ decreases by 86{\%}. It is observed that all samples are in ferrimagnetic state at room temperature. The number of Bohr magneton, n(μB), decreases with increasing Mg substitution which is explained by probable cation distribution in the spinel crystal structure. Possible explanation for the observed features of microstructure, initial permeability, DC magnetization and N{\'e}el temperature of the studied samples are discussed.",
author = "{Akther Hossain}, {A. K.M.} and Biswas, {T. S.} and Takeshi Yanagida and Hidekazu Tanaka and Hitoshi Tabata and Tomoji Kawai",
year = "2010",
month = "4",
day = "15",
doi = "10.1016/j.matchemphys.2009.11.040",
language = "English",
volume = "120",
pages = "461--467",
journal = "Materials Chemistry and Physics",
issn = "0254-0584",
publisher = "Elsevier BV",
number = "2-3",

}

TY - JOUR

T1 - Investigation of structural and magnetic properties of polycrystalline Ni0.50Zn0.50-xMgxFe2O4 spinel ferrites

AU - Akther Hossain, A. K.M.

AU - Biswas, T. S.

AU - Yanagida, Takeshi

AU - Tanaka, Hidekazu

AU - Tabata, Hitoshi

AU - Kawai, Tomoji

PY - 2010/4/15

Y1 - 2010/4/15

N2 - The structural and magnetic properties of Mg substituted Ni0.50Zn0.50-xMgxFe2O4 (where x = 0.0, 0.10, 0.20, 0.30, 0.40 and 0.50) sintered at various temperatures have been studied thoroughly. X-ray diffraction patterns of the samples showed single-phase cubic spinel structure without any detectable impurity phases. The lattice parameter decreases linearly with increase of Mg contents obeying Vegard's law. The bulk density, average grain size and initial permeability, μi′, decrease with increasing Mg substitution but increase with increasing sintering temperature for a particular composition. The highest initial permeability and quality factor, Q, are obtained for the Ni0.50Zn0.50Fe2O4 sintered at 1350 and 1250 °C, respectively. Domain wall relaxation frequency, fr, and Néel temperature, TN, are found to increase with Mg substitution. It is observed that when Zn is completely substituted by Mg in Ni0.50Zn0.50-xMgxFe2O4, the TN is increased by 106% and fr by 178%. On the other hand, μi′ decreases by 86%. It is observed that all samples are in ferrimagnetic state at room temperature. The number of Bohr magneton, n(μB), decreases with increasing Mg substitution which is explained by probable cation distribution in the spinel crystal structure. Possible explanation for the observed features of microstructure, initial permeability, DC magnetization and Néel temperature of the studied samples are discussed.

AB - The structural and magnetic properties of Mg substituted Ni0.50Zn0.50-xMgxFe2O4 (where x = 0.0, 0.10, 0.20, 0.30, 0.40 and 0.50) sintered at various temperatures have been studied thoroughly. X-ray diffraction patterns of the samples showed single-phase cubic spinel structure without any detectable impurity phases. The lattice parameter decreases linearly with increase of Mg contents obeying Vegard's law. The bulk density, average grain size and initial permeability, μi′, decrease with increasing Mg substitution but increase with increasing sintering temperature for a particular composition. The highest initial permeability and quality factor, Q, are obtained for the Ni0.50Zn0.50Fe2O4 sintered at 1350 and 1250 °C, respectively. Domain wall relaxation frequency, fr, and Néel temperature, TN, are found to increase with Mg substitution. It is observed that when Zn is completely substituted by Mg in Ni0.50Zn0.50-xMgxFe2O4, the TN is increased by 106% and fr by 178%. On the other hand, μi′ decreases by 86%. It is observed that all samples are in ferrimagnetic state at room temperature. The number of Bohr magneton, n(μB), decreases with increasing Mg substitution which is explained by probable cation distribution in the spinel crystal structure. Possible explanation for the observed features of microstructure, initial permeability, DC magnetization and Néel temperature of the studied samples are discussed.

UR - http://www.scopus.com/inward/record.url?scp=77649233105&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77649233105&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2009.11.040

DO - 10.1016/j.matchemphys.2009.11.040

M3 - Article

AN - SCOPUS:77649233105

VL - 120

SP - 461

EP - 467

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

IS - 2-3

ER -