Effect of Mn2+ substitution on structural, magnetic, electric and dielectric properties of Mg–Zn ferrites

Ghodake, U. R.; Chaudhari, N.D.; Kambale, Rahul C.; Patil, J.Y.; Suryavanshi, S.S.

doi:10.1016/j.jmmm.2016.01.022

Cited by 89 publications

(22 citation statements)

References 29 publications

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“…Also, the frequency dispersion of initial permeability ( i  ) was studied in frequency range of 100 Hz to 5 MHz at room temperature. The initial permeability of the ferrite samples was calculated using the inductance data and the standard formula for initial permeability [23]. The dielectric measurements at room temperature were carried using LCR-Q meter (HP 4284).…”

Section: Synthesismentioning

confidence: 99%

Co2+ substituted Mg–Cu–Zn ferrite: Evaluation of structural, magnetic, and electromagnetic properties

Thorat¹,

Patil

Nadargi

et al. 2018

J Adv Ceram

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We report the synthesis of Co 2+ substituted Mg-Cu-Zn ferrite via citrate gel combustion process and thereby its structural, transport, and magnetic properties for the use in electromagnetic energy absorption application. The polycrystalline ferrite system is investigated by interplay of stoichiometric composition with Mg 0.25-x Co x Cu 0.25 Zn 0.5 Fe 2 O 4 (0 ≤ x ≤ 0.25). Structural investigations using X-ray diffraction (XRD) and selected area electron diffraction (SAED) reveal the formation of spinel structure with linear growth of lattice constant due to Co 2+ substitution. The microstructural analysis (TEM and SEM) depicts the dense microstructure with the average grain size of 0.42-1.25 µm. The elemental analysis (EDS) confirms the elemental composition of the as-prepared ferrite with respect to the initial concentrations of the synthetic composition used. The observed variations in initial permeability ( i  ) and magnetic moment ( ) are explained based on deviation in saturation magnetization ( s B n M ), anisotropy constant ( 1 K ), density values, and exchange interaction. The temperature dependence of DC resistivity confirms the semiconducting behavior of the as-prepared ferrite material, with an increase in the DC resistivity by an incorporation of cobalt. Furthermore, the effects of adding Co 2+ on the Curie temperature, frequency dependent dielectric properties of the ferrite material are also discussed.

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Section: Synthesismentioning

confidence: 99%

Co2+ substituted Mg–Cu–Zn ferrite: Evaluation of structural, magnetic, and electromagnetic properties

Thorat¹,

Patil

Nadargi

et al. 2018

J Adv Ceram

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“…From the skeletal and X-ray densities of the samples, the percentage porosity (p) was determined using the following relation 32) : (5) The tetrahedral and octahedral site bond lengths (A-O, B-O) and ionic radii (r A , r B ) of the cubic spinel structures were calculated using the following formulae 33) .…”

Section: Xrd Analysismentioning

confidence: 99%

Structural and Magnetic Properties of Cr-Zn Nanoferrites Synthesized by Chemical Co-Precipitation Method

Powar¹,

Phadtare²,

Pathak³

et al. 2019

J. Korean Ceram. Soc

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Chromium-doped zinc ferrite nanoparticles with the general formula Cr y ZnFe 2-y O 4 (y = 0, 0.025, 0.05, 0.075, and 0.1) were synthesized by a surfactant-assisted chemical co-precipitation route using metal nitrate salt precursors. The phase purity and structural parameters were determined by powder X-ray diffraction. The concentration of Cr 3+ doped into ZnFe 2 O 4 (ZF) noticeably affected the crystallite size, which was in the range of 22 nm to 36 nm, and all samples showed a single cubic spinel structure without any secondary phase or impurities. The lattice parameter, X-ray density, and skeletal density increased with an increase in the Cr-doping concentration; on the other hand, a decreasing trend was observed for the particle size and porosity. The influence of Cr 3+ substitution on ZF magnetic properties were studied under an applied field of 15 kOe. The overall results revealed that the incorporation of a small amount of Cr dopant changed the structural, electrical, and magnetic properties of ZF.

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“…This distribution between the two sites affects the magnetic properties of the materials (Thomas et al, 2017). Ferrites can be produced by many different production methods such as; sol-gel [8], chemical co-precipitation method (Şaşmaz Kuru et al, 2017), solid state reaction route (Vasoya et al, 2016), oxalate precursor chemical method (Ghodake et al, 2016). Size and properties of ferrite particles may change with preparation conditions.…”

Section: Introductionmentioning

confidence: 99%

“…These sites are also called tetrahedral and octahedral sites. Each unit cell has 64 tetrahedral sites and 32 octahedral sites (Ghodake et al, 2016). M 2+ and Fe 3+ ions are distributed in these sites (Manikandan et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Frequency Dependence of Dielectric, Conductivity, Impedance and Electrical Modulus Properties of La3+ Substituted in Cobalt- Magnesium Ferrites

Kuru

2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, structural, morphological, dielectric and AC conductivity properties of CoMgLa ferrite samples (Co0.5Mg0.5LaxFe2-xO4) were investigated according to the change of x (x=0, 0.1, 0.2, 0.3, 0.4 and 0.5). Samples were synthesized by co-precipitation method. The structural properties were examined using XRD and results show that the prepared sample crystallizes in the cubic spinel structure. Crystallite sizes are changing between 24.92 to 9.80 nm. Morphological and elemental properties were analyzed by SEM and EDX. Dielectric properties were investigated by impedance spectroscopy. The samples showed normal dielectric properties consistent with the Maxwell-Wagner model due to interfacial polarization. When the impedance characteristics were examined, it was found that the relaxation process was compatible with the Cole-Cole model. The results of the modulus show that grains contribute to the relaxation process as well as grain boundaries. AC conductivity exhibited semiconductor behavior. The constant behavior of conductivity at low frequencies is a sign that the examined samples may be suitable for many applications.

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Effect of Mn2+ substitution on structural, magnetic, electric and dielectric properties of Mg–Zn ferrites

Cited by 89 publications

References 29 publications

Co2+ substituted Mg–Cu–Zn ferrite: Evaluation of structural, magnetic, and electromagnetic properties

Co2+ substituted Mg–Cu–Zn ferrite: Evaluation of structural, magnetic, and electromagnetic properties

Structural and Magnetic Properties of Cr-Zn Nanoferrites Synthesized by Chemical Co-Precipitation Method

Frequency Dependence of Dielectric, Conductivity, Impedance and Electrical Modulus Properties of La3+ Substituted in Cobalt- Magnesium Ferrites

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