X-ray absorption and Mössbauer spectra, and microwave absorption of (Co, Mn)-doped SrFe12O19 hexaferrites

Phan, The‐Long; Nguyen, Hong Hanh; Jeong, W.H.; Idczak, R.; Tran, V.H.; Yang, Dong‐Seok; Lee, Bo Wha

doi:10.1016/j.cap.2021.07.002

Cited by 16 publications

(1 citation statement)

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“…Numerous research teams have developed these ferrites and investigated how dopants affect their magnetic characteristics. For Ba sites, metal ions like La, Sm, and Nd with ionic radii significantly more significant than the Fe ionic radius can increase the coercive field and magnetization [34][35][36]. Recent studies have demonstrated that M-type hexaferrites with rare earth (Re) metal substitutions have better magnetic characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites

Ijaz,

Asif,

El-Zahhar

et al. 2023

Phys. Scr.

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Magnetic and structural characteristics of M-type barium hexaferrite nanoparticles can be tuned by doping different di or trivalent metal ions. Here BaFe11.5-xAl0.5CoxO19 hexaferrite nanoparticles were synthesized using a sol-gel process, and the influence of doping concentrations on M-type BaFe11.5-xAl0.5CoxO19 hexaferrite nanoparticles was deliberated. The XRD analysis confirms the formation of ferrites successfully. When the doping level increased, the grain dimension (D) initially reduced and then increased. Similarly, the lattice constants ‘a’ and ‘c’ decreased initially and then increased. The findings indicated that the (Mr/Ms) ratio decreased initially as the doping content increased, but at higher doping ranges, it started to rise. At the same time, coercivity (Hc) and magneto-crystalline an-isotropy field (Ha) increased as the doping level increased. Excellent magnetic characteristics were obtained for BaFe11.5-xAl0.5CoxO19 hexaferrites at doping content of (x=1.5), with magnetic moment 10.80µB, saturation magnetization 57.35 emu/g, and coercivity 5.21 kOe along anisotropic applied field of 1.62 kOe. The findings mentioned above imply that magnetic characteristics of M-type Barium hexaferrites can be significantly improved upon doping of Cobalt against Aluminium substituted hexaferrite, which will make such types of Ba-hexaferrite very useful in many applications, for example, in magnetic filters, memory devices, and recording media, etc.

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Section: Introductionmentioning

confidence: 99%

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites

Ijaz,

Asif,

El-Zahhar

et al. 2023

Phys. Scr.

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Study on electrical and magnetic properties of Nd–Co co-substituted M-type strontium ferrite suitable for microwave devices

Chang

Xiong

Wang

et al. 2023

J Mater Sci: Mater Electron

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Investigation of interactions in the mechanically activated α-Fe2O3/Li2CO3 reagents by thermal analysis

Nikolaev

Lysenko

Суржиков

et al. 2022

J Therm Anal Calorim

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X-ray absorption and Mössbauer spectra, and microwave absorption of (Co, Mn)-doped SrFe12O19 hexaferrites

Cited by 16 publications

References 49 publications

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites

Study on electrical and magnetic properties of Nd–Co co-substituted M-type strontium ferrite suitable for microwave devices

Investigation of interactions in the mechanically activated α-Fe2O3/Li2CO3 reagents by thermal analysis

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X-ray absorption and Mössbauer spectra, and microwave absorption of (Co, Mn)-doped SrFe12O19 hexaferrites

Cited by 16 publications

References 49 publications

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe11.5Al0.5O19 hexaferrites

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe11.5Al0.5O19 hexaferrites

Study on electrical and magnetic properties of Nd–Co co-substituted M-type strontium ferrite suitable for microwave devices

Investigation of interactions in the mechanically activated α-Fe2O3/Li2CO3 reagents by thermal analysis

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Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites

Effect of ferromagnetic cobalt on characteristics of coercive Aluminium substituted BaFe_11.5Al_0.5O₁₉ hexaferrites