Static magnetic properties of Co and Ru substituted Ba–Sr ferrite

Singh, Charanjeet; Narang, Sukhleen Bindra; Hudiara, I.S.; Bai, Yang; Tabatabaei, Faride

doi:10.1016/j.materresbull.2007.06.050

Cited by 100 publications

(26 citation statements)

References 19 publications

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“…ion (0.645 A°) [7]. The change in lattice constants also varies with the distance between magnetic ions resulting in change of exchange interaction and thus magnetic properties are altered with substitution [8].…”

Section: Resultsmentioning

confidence: 99%

Magnetic properties of Ni–Co doped barium strontium hexaferrite

Kanagesan

Jesurani

Ramachandran

et al. 2012

J Mater Sci: Mater Electron

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A series of Ni-Co substituted barium strontium hexaferrite materials, Ba 0.5 Sr 0.5 Ni x Co x Fe 12-2x O 19 (x = 0.0, 0.2, 0.4, 0.6, 0.8 mol%) was synthesized by the sol-gel method. X-ray diffraction analysis has shown that the NiCo substitutions maintain in a single hexagonal magnetoplumbite phase. The room temperature magnetic properties and the cation site preferences of Ni-Co substituted ferrite were investigated by VSM. Substitutions led to decrease in coercivity while saturation magnetization remains the almost same. It indicates that the saturation magnetization (52.81-59.8 Am 2 /kg) and coercivity (69.83-804.97 Oe) of barium strontium hexaferrite samples can be varied over a very wide range by an appropriate amount of Ni-Co doping contents.

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Section: Resultsmentioning

confidence: 99%

Magnetic properties of Ni–Co doped barium strontium hexaferrite

Kanagesan

Jesurani

Ramachandran

et al. 2012

J Mater Sci: Mater Electron

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“…Structure characterization, using X-ray diffractograms and micrographs, has been explained in our previous investigation [5].…”

Section: Resultsmentioning

confidence: 99%

“…In the previous paper, we reported static parameters of Co and Ru substituted Ba-Sr ferrite [5]. In the present paper for the first time, we have investigated electromagnetic properties of Ba-Sr hexagonal ferrite with substitution of divalent Co 2+ ions and tetravalent Ru 4+ ions and also suggested a composition for high frequency applications.…”

Section: Introductionmentioning

confidence: 82%

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Microwave and electrical behavior of Co2+ and Ru4+ ions substituted Ba-Sr sintered ferrite

et al. 2011

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The complex permittivity and complex permeability of synthesized M-type hexagonal ferrite powders, Ba 0.5 Sr 0.5 Co x Ru x Fe (12-2x) O 19 (x=0.0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2) are measured at X-Band. The experimental results conclude that Co 2+ and Ru 4+ ions substitution enhances electromagnetic properties, rendering the use of ferrite for lossy applications. The acceleration in hoping mechanism between Fe 2+ and Fe 3+ ions leads to dominance of ε′ and ε″ over μ′ and μ″ along entire frequency band.

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“…BaFe 12 O 19 has wave absorption band of several gigahertz, as it has high coercive force and high magnetic anisotropy [2] by the Fe 3+ ion on the 2b, 4f 2 site in its magnetoplumbite structure. ion on the ferrite structure [3][4][5][6][7][8][9][10][11]. In this study, we investigated wave absorption range change of of BaFe 10 XTiO 19 (XTiM, X = Co, Cu, Ni, Zn) nanopowder according to change of magnetization easy axis by combination of divalent element (Co, Cu, Ni, Zn) and tetravalent element (Ti).…”

Section: Introductionmentioning

confidence: 99%

Influence of Substituted Elements on Reflection Loss of Ba-Ferrite Nanoparticle

Yang

Jeong

Park

et al. 2017

Archives of Metallurgy and Materials

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Due to the rapid development of the information communication industries, it is expected that next-generation mobile communication devices in the data communication environment will be used at the same time in the L~X band (1-12 GHz). To mutual electric wave interference prevention, research on wave absorbers in L~X band is needed. In this paper, barium ferrite was researched as L~X band wave absorber. The Barium ferrite (BaM, Ba ferrite) substituted by divalent ions (Co ). The substituted Ba ferrite nanoparticles were fabricated by sol-gel process. Lattice parameter, particle size, magnetic properties, and reflection loss were analyzed by X-ray diffraction (X-RD), a Vibrating Sample Magnetometer (VSM), and a Network Analyzer. Lattice parameter of Ba ferrite was changed 0.0005 to 0.0078 Å in a-b direction, and 0.0187 to0.0445 Å in c-direction by substituted elements, and it influenced on magnetic anisotropy. In addition, Co-Ti substitution elements influenced that coercive force decrease 5,739 to 2,240 Oe. Moreover, reflection loss frequencies were shifted from 16.3 GHz to 14.4 and 17.4 GHz by substituted elements Co-Ti and Zn-Ti.

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Static magnetic properties of Co and Ru substituted Ba–Sr ferrite

Cited by 100 publications

References 19 publications

Magnetic properties of Ni–Co doped barium strontium hexaferrite

Magnetic properties of Ni–Co doped barium strontium hexaferrite

Microwave and electrical behavior of Co2+ and Ru4+ ions substituted Ba-Sr sintered ferrite

Influence of Substituted Elements on Reflection Loss of Ba-Ferrite Nanoparticle

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