Tailored dielectric, magnetic and magnetoelectric properties of Cu0.6Zn0.4Fe2O4-BaTiO3 composites

Hemeda, O. M.; Hamad, Mahmoud A.; Henaish, A. M. A.

doi:10.1088/2053-1591/aacef3

Cited by 14 publications

(2 citation statements)

References 30 publications

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“…The combination of magnetostrictive spinel ferrites and piezoelectric phases produces magnetoelectric (ME) composites that are applicable in sensors and tunable electronic devices [22][23][24][25]. Spinel Ni-Zn ferrites, in particular, have been combined with BaTiO 3 to produce multiferroic composites with tailored electromagnetic properties [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1MHz-12GHz frequency range

Othero

Santos

Barros

et al. 2021

PAC

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In this paper, NiZnCo ferrite was produced by solid state synthesis, calcination at 1000?C and sintering at 1250?C in air atmosphere. The microstructure and phases of the sintered sample were analysed by scanning electron microscopy and X-ray diffraction, respectively. The magnetic properties of the ferrite were evaluated by magnetization and magnetostriction measurements. The complex magnetic permeability and complex permittivity were also measured between 1MHz-12GHz and the reflection loss (RL) was calculated in the 100MHz-12GHz frequency range. The results show that the ferrite sample presents magnetostrictive behaviour and a saturation magnetization of 71 Am2/kg. Complex permittivity measurements indicate that the material has dielectric behaviour in the whole frequency range studied, with "? varying between 7-40, and magnetic behaviour in frequencies between 1MHz-5GHz. The minimum RL was found at frequencies between 2.4-3.3GHz and the calculated RL value for a thickness of 3mm was lower than ?10 dB in frequencies between 2.3-7.3GHz. These results indicate potential application as microwave absorber in the S band.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1MHz-12GHz frequency range

Othero

Santos

Barros

et al. 2021

PAC

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“…In recent years, the ferrites have been known as great practical materials as well as the special class of magnetic compounds [1][2][3][4][5][6][7][8][9][10]. Because of their significant dielectric, magnetic properties, they are used in wide ranges of applications at different fields of technology (energy, refrigeration, and health) [11][12][13][14][15][16][17][18][19]. CoFe 2 O 4 is one of the important types of ferrites which exhibit remarkable properties, such as good mechanical hardness, chemical stability and high magnetostriction, with high saturation magnetization, high coercivity and high anisotropy [20,21].…”

Section: Introductionmentioning

confidence: 99%

The role of flash auto-combustion method and Mn doping in improving dielectric and magnetic properties of CoFe2O4

et al. 2020

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In this work, we prepared Co 1-x Mn x Fe 2 O 4 (CMFO) ferrites at different levels of doping x = 0.0, 0.1, 0.3, 0.5 and 0.7 using flash auto-combustion method, aiming to obtain promising results more than CoFe 2 O 4 ferrite prepared by other methods. The results show an increase in lattice constant of CMFO with Mn content. In addition, there are many intra-granular pores and significant fusion of the small grains into larger grains. The dielectric properties of CMFO ferrites are enhanced with Mn content. Furthermore, saturation magnetization (M S ) and remanent magnetization (M r ) of CMFO are improved slightly with Mn content up to x = 0.1 and then decrease with higher Mn content. The coercivity (H C ) of CMFO ferrite decreases with Mn content until it reaches minimum value of 971 Oe for level of Mn substitution x = 0.5; on further Mn content (X = 0.7), it is observed that H c increases to 1249 Oe. In comparison to previous works, H C (x = 0) and M S and M r for our sample (x = 0.1) are significantly more than corresponding values obtained for CoFe 2 O 4 ferrite prepared by other methods.

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Electrical properties and positron annihilation studies for LaxCoFe2−xO4

et al. 2018

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Tailored dielectric, magnetic and magnetoelectric properties of Cu_0.6Zn_0.4Fe₂O₄-BaTiO₃ composites

Cited by 14 publications

References 30 publications

Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1MHz-12GHz frequency range

Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1MHz-12GHz frequency range

The role of flash auto-combustion method and Mn doping in improving dielectric and magnetic properties of CoFe2O4

Electrical properties and positron annihilation studies for LaxCoFe2−xO4

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