Structural, morphological, magnetic and dielectric characterization of nano-phased antimony doped manganese zinc ferrites

Sridhar, Ch.S.L.N.; Lakshmi, Ch.S.; Govindraj, G.; Bangarraju, S.; Satyanarayana, L.; Potukuchi, D. M.

doi:10.1016/j.jpcs.2016.01.006

Cited by 28 publications

(3 citation statements)

References 83 publications

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“…MnZn ferrites have a broad area of applications due to high saturation magnetization [226], high initial permeability [50,227], low power loss [228]. The application area of MnZn ferrites include power applications [229][230][231][232][233][234][235], microwave devices [236], magnetic fluid [145,237], radar absorbing system, high frequency applications [238,239], bio-medical [240], water purification [241,242]etc.Use of MnZn ferrites in the field of power application attracted great attention in the research areas. From last many years the MnZn ferrites are synthesized to be used in power applications for making current convertors [227], power inductors with magnetic cores [130], electronic transformer cores [243], high frequency applications [143],electronics and communication [244].…”

Section: Applications Of Mnzn Ferritesmentioning

confidence: 99%

A review on MnZn ferrites: Synthesis, characterization and applications

Thakur

Chahar

Taneja

et al. 2020

Ceramics International

268

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Researchers are taking great interest in the synthesis and characterization of MnZn ferrites due to their wide range of applications in many areas. MnZn ferrites are a class of soft magnetic materials that have very good electrical, magnetic and optical properties. The properties of MnZn ferrites include high value of resistivity, permeability, permittivity, saturation magnetization, low power losses and coercivity. The above mentioned advantageous features of MnZn ferrites make them suitable for the use in various applications. In biomedical field these ferrites are used for cancer treatment and MRI. MnZn ferrites are also used in electronic applications for making transformers, transducers and inductors. These ferrites are also used in magnetic fluids, sensors and biosensors. MnZn ferrite is highly useful material for several electrical and electronic applications. It finds applications in almost every household appliances like mobile charger, LED bulb, TV, refrigerator, juicer mixer, washing machine, iron, microwave oven, mobile, laptop, desktop, printer and so on. Therefore, the present review focuses on different techniques for synthesis of MnZn ferrites in literature, their characterization tools, effect of doping on the properties of MnZn ferrite and finally we will discuss about their applications.

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Section: Applications Of Mnzn Ferritesmentioning

confidence: 99%

A review on MnZn ferrites: Synthesis, characterization and applications

Thakur

Chahar

Taneja

et al. 2020

Ceramics International

268

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“…The radius of the Zn 2+ ions in the cell reduces the ′H c ′[53,54]. The marginal enhancement of magnetic parameters is due to the magnetic ordering in surface spin[55].…”

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confidence: 99%

Influence of divalent metal ion (Zn²⁺) on magnetic properties, curie temperature and DC electrical properties in Ce³⁺ substituted Ni-Zn ferrites

V¹,

Alhadhrami²,

Shankaramurthy³

et al. 2022

Phys. Scr.

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Nanoparticles of Ni1-xZnxCe0.1Fe1.9O4 ferrite substituted with Zn2+ ion concentrations (0.0, 0.2, 0.4, 0.6, 0.8 & 1.0) have been synthesised via aqueous citrate precursor auto combustion method. The obtained Powder X-ray diffraction data suggests a good crystalline phase; the crystallite size exists in the range of 14~38 nm. The lattice constant of samples increases with Zn2+ concentration. It validates Vegard's law and the decreasing trends in porosity of the samples are identified. The inhomogeneity in the grains was confirmed from FE-SEM. The EDS spectrogram attributes the good stoichiometry in the product. The Thermogravimetric analysis reveals that the crystallization occurred within the temperature 800˚C. The high-temperature DC conductivity of the samples shows that NTC behaviour. The Curie temperature and activation energy are estimated and the activation energy of carriers are found to be more at the paramagnetic region. The magnetic saturation ('Ms*') has maximum for Zn2+ = 0.2 (57.7 emu/g) and coercive field (Hc) related with a radius of occupancy of Zn2+ ion validates the relation Hc∝1/r and also, the value of the remanence ratio suggests that isotropic magnetization took place in the heterogeneous material.

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“…In case of Ni-Zn-Cr ferrites, the q is reported [83] to be of the order of 10 7 X cm at 10 kHz. High ac resistivity (*10 6 X cm) and low dielectric loss factor are witnessed [84] in Sb 5? -doped nanophased Mn-Zn ferrites synthesized by hydrothermal method.…”

mentioning

confidence: 99%

Experimental characterization of nanocrystalline niobium-doped nickel–zinc ferrites: occurrence of superparamagnetism

Lakshmi¹,

Sridhar

Govindraj

et al. 2016

J Mater Sci

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Structural, morphological, magnetic, and dielectric investigations are carried out in Nb-doped (viz., for x equal to 0.0-0.4 by wt%) nanocrystalline Ni-Zn ferrites synthesized by hydrothermal method. XRD, IR studies infer the growth of nano structures and Fe 2 O 3 phase. Nb ions segregate at grain boundaries. Crystallite size (D) varies from 62 to 18 nm with x. FTIR absorption exhibits split at higher x. Saturation magnetization witnesses an overall decrease with x. Trends of M s (x) are explained by nature of dopant, preferential replacement, surface canting (Y-K angles) and lattice contraction. Variations of coercive field (H c ) and D infer singledomain to multi-domain morphological transformation. Occurrence of superparamagnetism (SPM) is predicted for zeroed values of H c and for a critical concentration x crit equal to 0.321. Enhanced Nb 5? -Fe 2? binding with dopant (x up to 0.2) results for decrease in dielectric constant e 0 r , loss factor tand and increase in resistivity q. Lowered ac conductivity is attributed to blockade of path by Nb 5? ions in the vicinity of B-sites. Relatively higher q (*10 8 X cm) and lower loss (tand *10 -2 -10 -3 ) evinced for 10 kHz. Enhanced core loss is realized with x manifested as lowered H c and tand to usher their utility in high-frequency applications.

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Structural, morphological, magnetic and dielectric characterization of nano-phased antimony doped manganese zinc ferrites

Cited by 28 publications

References 83 publications

A review on MnZn ferrites: Synthesis, characterization and applications

A review on MnZn ferrites: Synthesis, characterization and applications

Influence of divalent metal ion (Zn²⁺) on magnetic properties, curie temperature and DC electrical properties in Ce³⁺ substituted Ni-Zn ferrites

Experimental characterization of nanocrystalline niobium-doped nickel–zinc ferrites: occurrence of superparamagnetism

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Structural, morphological, magnetic and dielectric characterization of nano-phased antimony doped manganese zinc ferrites

Cited by 28 publications

References 83 publications

A review on MnZn ferrites: Synthesis, characterization and applications

A review on MnZn ferrites: Synthesis, characterization and applications

Influence of divalent metal ion (Zn2+) on magnetic properties, curie temperature and DC electrical properties in Ce3+ substituted Ni-Zn ferrites

Experimental characterization of nanocrystalline niobium-doped nickel–zinc ferrites: occurrence of superparamagnetism

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Influence of divalent metal ion (Zn²⁺) on magnetic properties, curie temperature and DC electrical properties in Ce³⁺ substituted Ni-Zn ferrites