Structural and magnetic studies of Ce-Zn doped M-type SrFe12O19 hexagonal ferrite synthesized by sol-gel auto-combustion method

Yasmin, Nazia; Iqbal, M. Zubair; Zahid, Maria; Gillani, Saher Fatima; Ashiq, Muhammad Naeem; Inam, Iqra; Abdulsatar, Sidra; Safdar, Muhammad; Mirza, Misbah

doi:10.1016/j.ceramint.2018.09.190

Cited by 37 publications

(7 citation statements)

References 35 publications

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“…Due to prominent electrical, magnetic, optical, and electromagnetic properties, M-type hexaferrites got applications in microwave absorbers, filters, diagnostics, ferrofluids, transformer cores, magnetic memories, magnetic recording, and high frequency devices 3 . Few of these applications were obtained from the M-type hexaferrite compounds such as BaFe 12 O 19 , SrFe 12 O 19 , and PbFe 12 O 19 4 – 23 .…”

Section: Introductionmentioning

confidence: 99%

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Structural, electrical, and magnetic properties of nano Sr1−XLaXFe12O19 (X = 0.2–0.8)

Basha

Kumar

Naidu

et al. 2022

Sci Rep

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The current work is mainly devoted to the synthesis, structural, electrical, and magnetic characterization of Sr1−XLaXFe12O19 (X = 0.2–0.8) (SLFO) nanoparticles synthesized via the hydrothermal technique. The hexagonal peaks were determined using X-ray diffraction analysis. The obtained results indicated that the lattice constants were noted to be increasing from 0.58801 to 0.58825 nm (a = b), and 2.30309 to 2.30341 nm (c) with increase of in ‘X’. The morphological studies ensured that the grains as well as nanoparticles of SLFO acquired almost spherical shape. The optical properties were investigated using FTIR and UV–Visible spectra. The optical bandgap (Eg) of SLFO was found to be increasing from 1.866 to 2.118 eV with increase of dopant content. The electrical properties of SLFO were studied in detail as a function of temperature, and frequency. In addition, the dielectric modulus, and impedance spectroscopy analysis was carried out to describe the space charge polarization, and electric conduction mechanism, respectively. The hysteresis loop (M–H curves) of SLFO revealed the decrease of magnetization from 36.34 to 7.17 emu/g with increase in ‘X’.

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Section: Introductionmentioning

confidence: 99%

“…In addition, several scientists particularly focused on the synthesis and characterization of lanthanides (La, Sm, Gd, Nd, Pr etc.) doped SrFe 12 O 19 (SFO) in order to enhance the hardness of the SFO 3 . As a result, few properties were improved significantly.…”

Section: Introductionmentioning

confidence: 99%

Structural, electrical, and magnetic properties of nano Sr1−XLaXFe12O19 (X = 0.2–0.8)

Basha

Kumar

Naidu

et al. 2022

Sci Rep

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“…4 (a-e)) and (Fig. 4 (f)) [80]. On the other side Auwal et al, fabricated SrBixLaxFe12-2xO19 (0.0 ≤ x ≤ 0.5) ferrites were prepared by sol-gel method.…”

Section: Figure4: (A-e) Shows the Sem Images Of Ce-zn Doped M-type Sr...mentioning

confidence: 99%

Recent Advances in Processing of Hard Ferrites

Rana

2023

Materials Research Foundations

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We plan to discuss possible fabrication approaches for hard ferrites, which are well-known for their vast range of applications and uses. We've covered all six varieties of hexagonal ferrites in this chapter: M-type, Z-type, Y-type, W-type, X-type, and U-type hexa-ferrites. Hexaferrites are ferromagnetic materials, and their properties are entirely determined by the intrinsic structure of ferrites. The numerous synthesis procedures for hard ferrite nanoparticles are the focus of this chapter. This chapter describes in detail the different processes for preparing hard ferrites, including examples, advantages, and limitations. Solid-state, combustion, hydrothermal, microemulsion, solvothermal, solution combustion, biosynthetic approach, microwave-assisted combustion, sol–gel, co–precipitation, or laser pyrolysis, sonochemical, thermal decomposition, and reverse micelle processes are briefly explained. The influence of synthesis procedures on the characteristics of ferrites in nanoform is summarised in this chapter.

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“…Nd [9], La [10,11], Pr [12], Zn-Sn [13], Sn-Mg [3], Er-Ni [2], Bi-Cr [14], Nd-Co [15], Al [5], Ce-Zn [16] and Co [17]. However, there are few first-principles studies on doped SrFe 12 O 19 : in 2003, Fang et al [18] investigated the magnetic and electronic properties of SFO from first-principles calculations, and their calculations showed that the most stable state of the hexaferrite is a ferrimagnetic order with the Fe 3+ ions at the 4f sites having their magnetic moment anti-parallel to the rest of the Fe 3+ ions such as Gorter's prediction [19,20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cr3+ doped on electronic and magnetic properties of SrFe12O19 by first-principles study

et al. 2021

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This theoretical work presents the electronic and magnetic properties of Cr-doped SrFe 12 O 19 using first-principles calculations based on density functional theory. An improvement in the magnetic properties of SrFe 12 O 19 is predicted when doped with the Cr 3+ ion. It was found that the magnetic Cr 3+ ion preferentially replaces Fe 3+ ion at 2a, 4f 1 , and 12k sites. The calculation demonstrates that if Cr ion occupies the 4f 1 site, a total magnetization of 52.920 emu/g is obtained. On the other hand, SrFe 11.5 Cr 0.5 O 19 behaves as a semiconductor when Cr occupies the 2a and 12k sites while behaves like half-metal when Cr occupies the 4f 1 site. The higher magnetization, identified for the SrFe 11.5 Cr 0.5 O 19 compound, provides unique qualities in the applications of permanent magnets and/or related devices like spintronics and magnetic semiconductors.

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Structural and magnetic studies of Ce-Zn doped M-type SrFe12O19 hexagonal ferrite synthesized by sol-gel auto-combustion method

Cited by 37 publications

References 35 publications

Structural, electrical, and magnetic properties of nano Sr1−XLaXFe12O19 (X = 0.2–0.8)

Structural, electrical, and magnetic properties of nano Sr1−XLaXFe12O19 (X = 0.2–0.8)

Recent Advances in Processing of Hard Ferrites

Effect of Cr3+ doped on electronic and magnetic properties of SrFe12O19 by first-principles study

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