Effect of Mg substitution on the magnetic properties of Ni–Zn ferrites

Babu, Y. Ramesh

doi:10.1007/s12043-017-1393-0

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Although Ni-Zn ferrites have been investigated extensively, the combination of Ni0.5MgxZn0.5-xFe2O4 ferrites prepared by co-precipitation method is not yet reported, to our knowledge. Babu [32] has studied the effect of Mg substitution on the structural and magnetic properties of Ni0.3Zn0.7−xMgxFe2O4 (x varying from 0.00 to 0.25 in steps of 0.05) ferrite prepared by the conventional solid-state method. Kavitha et al [33] studied the magnetic and electrical properties of Ni0.80−xMgxZn0.20Fe2O4 (x = 0, 0.10-0.50) ferrites prepared by the flash combustion method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and magnetic properties of Ni0.5MgxZn0.5-xFe2O4 (0.0 ≤ x ≤ 0.5) nanocrystalline spinel ferrites

Hezam

Khalifa

Nur

et al. 2021

Materials Chemistry and Physics

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Section: Introductionmentioning

confidence: 99%

Synthesis and magnetic properties of Ni0.5MgxZn0.5-xFe2O4 (0.0 ≤ x ≤ 0.5) nanocrystalline spinel ferrites

Hezam

Khalifa

Nur

et al. 2021

Materials Chemistry and Physics

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Study the physical, electrical and dielectric properties of calcium doped Ni–Zn ferrites

et al. 2019

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Calcium doped Ni–Zn ferrites having the nominal composition [Formula: see text] (x = 0, 0.1, 0.2, 0.3 and 0.4) are prepared via the conventional ceramic method at [Formula: see text] for 3 h to study their physical, electrical and dielectric properties at high frequencies which have extended their applications. The X-ray diffraction (XRD) and scanning electron microscope (SEM) have been used to characterize the microstructure and surface morphology of the prepared composition. XRD patterns reveal the formation of pure spinel phase ferrites whereas SEM micrographs display nonhomogeneous grains of polyhedral shape. The studies disclose that with increasing Ca content in spinel, the lattice parameter of the Ni–Zn ferrite increases and at the same time the grain boundary also increases. As a result of the increased boundary, the large grains could be trapped pores inside the grains which have affected the density, resistivity and dielectric constant of the sample. The DC electrical resistivity of the prepared sample decreases with the increase of Ca content. Also, the resistivity decreases with increasing the temperature. This increase in the conductivity with temperature must be regarded mainly as due to the thermally activated mobility of charge carriers, but not to a thermally activated creation of these carriers. The dielectric constant decreases with the increasing frequency following the Verway-de-Boer hopping mechanism.

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Effect of zinc doping on structural, bonding nature and magnetic properties of co-precipitated magnesium–nickel ferrites

Yelai,

Robert,

Nandagopal

2024

Zeitschrift Für Naturforschung A

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This paper describes the electronic structure, bonding nature and magnetic properties of Mg0.5Ni0.5−x Zn x Fe2O4 (x = 0.1, 0.2, 0.3, 0.4) nano-spinel ferrite samples synthesized by the co-precipitation method. Spinel structure with Fd 3 ̄ $\bar{3}$ m space group is confirmed by XRD analysis with trace amounts of hematite. The results of XRD and FTIR confirm the formation of spinel structure. The estimated average crystallite size ranges from 35 to 59 nm by different methods. The FESEM analysis revealed that the samples have a generally porous aspect. Particle size analysis indicates that the average particle size is approximately 150 nm. Covalent bond exists between the tetrahedral A site – oxygen atom (A–O) and ionic nature exists between the octahedral B site – oxygen atom (B–O) in the two sub lattices of the ferrite unit cell, as determined by the maximum entropy method. Mg0.5Ni0.3Zn0.2Fe2O4 demonstrates high A–O covalency and B–O covalency/ionic boundary based on MEM electron density analysis.

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Effect of Mg substitution on the magnetic properties of Ni–Zn ferrites

Cited by 3 publications

References 10 publications

Synthesis and magnetic properties of Ni0.5MgxZn0.5-xFe2O4 (0.0 ≤ x ≤ 0.5) nanocrystalline spinel ferrites

Synthesis and magnetic properties of Ni0.5MgxZn0.5-xFe2O4 (0.0 ≤ x ≤ 0.5) nanocrystalline spinel ferrites

Study the physical, electrical and dielectric properties of calcium doped Ni–Zn ferrites

Effect of zinc doping on structural, bonding nature and magnetic properties of co-precipitated magnesium–nickel ferrites

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