Investigation of structural and magnetic properties of La doped Co–Mn ferrite nanoparticles in the presence of α-Fe2O3 phase

Ravinder, D.; Hashim, Mohd.; Upadhyay, Anupama; Ismail, Mukhlis M.; Kumar, Shalendra; Kumar, Ravi; Meena, Sher Singh; Khalilullah, Ahmad

doi:10.1016/j.ssc.2021.114629

Cited by 17 publications

(2 citation statements)

References 13 publications

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“…742081 and 732410). The diffraction peaks are prominent and sharp, with only a small peak at around 32°, which may belong to hematite Fe 2 O 3 [ 28 , 29 , 30 ]. The intensity of the spinel phase’s primary peak decreases as the Mg content increases.…”

Section: Resultsmentioning

confidence: 99%

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

et al. 2022

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Using the auto combustion flash method, Ni1−x+2Mgx+2Fe2+3O4 (x = 0, 0.2, 0.6, 0.8 and 1) nano-ferrites were synthesized. All samples were thermally treated at 973 K for 3 h. The structural analysis for the synthesized samples was performed using XRD, high-resolution transmission electron microscopy (HRTEM), and FTIR. Scanning electron microscopy (SEM) was undertaken to explore the surface morphology of all the samples. The thermal stability of these samples was investigated using thermogravimetric analysis (TGA). XRD data show the presence of a single spinel phase for all the prepared samples. The intensity of the principal peak of the spinel phase decreases as Mg content increases, showing that Mg delays crystallinity. The Mg content raised the average grain size (D) from 0.084 μm to 0.1365 μm. TGA shows two stages of weight loss variation. The vibrating sample magnetometer (VSM) measurement shows that magnetic parameters, such as initial permeability (μi) and saturation magnetization (Ms), decay with rising Mg content. The permeability and magnetic anisotropy at different frequencies and temperatures were studied to show the samples’ magnetic behavior and determine the Curie temperature (TC), which depends on the internal structure. The electrical resistivity behavior shows the semi-conductivity trend of the samples. Finally, the dielectric constant increases sharply at high temperatures, explained by the increased mobility of charge carriers, and decreases with increasing frequency.

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Section: Resultsmentioning

confidence: 99%

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

et al. 2022

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“…Increasing the pulse laser's energy to 600 mJ led to a clear improvement in the film's structure by increasing the intensity of the main peak and the emergence of other peaks belonging to spinel cobalt ferrite with the presence of some peaks belonging to α-Fe 2 O 3 as hematite phase. 27 The hematite phase appeared after increasing the energy of the laser pulse to 600 mJ, as the increase in the energy of the laser pulse led to an increase in the crystallization of ferrite, as was also observed in the sample CF650 mJ. The use of low energies less than 600 mJ did not show good results in terms of crystallization.…”

Section: Resultsmentioning

confidence: 78%

Influence of Pulse Laser Energy on Structural and Magnetic Properties of CoFe₂O₄ and CoLa_0.01Fe_1.99O₄ Thin Films

Ismail

Shaker²,

Kamil³

2023

ECS J. Solid State Sci. Technol.

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Cobalt ferrite and CoLa0.01Fe1.99O4 thin film were prepared using the pulsed laser deposition method with varying pulse laser energy. X-ray diffraction analysis was used to investigate the structure of ferrite thin films. The study was expanded to include morphology and magnetic properties. The prepared films showed a strong peak at (311), which belongs to the cubic spinel cobalt ferrite phase with the presence of some peaks belonging to α-Fe2O3 as hematite phase that depressed when doping with La ion, and the crystallization improvement significantly after intensity increases by increasing the pulsed laser energy from 500 to 650 mJ. The lattice constant of Cobalt ferrite thin films increased with an increase in the laser pulse energy while the crystallite size deduced from the Williamson Hall method showed decreases with the increases of pulse laser energy. The saturation, remnant magnetization, and coercivity of prepared films were studied according to increasing pule laser energy and Lanthanum doping.

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Tailored physical and magnetic properties by La3+ dopants in Mg–Ni–Co nanoferrites: insight into the law of approach to saturation

Abdallah,

Aridi,

Rabaa

et al. 2023

Appl. Phys. A

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Investigation of structural and magnetic properties of La doped Co–Mn ferrite nanoparticles in the presence of α-Fe2O3 phase

Cited by 17 publications

References 13 publications

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Influence of Pulse Laser Energy on Structural and Magnetic Properties of CoFe₂O₄ and CoLa_0.01Fe_1.99O₄ Thin Films

Tailored physical and magnetic properties by La3+ dopants in Mg–Ni–Co nanoferrites: insight into the law of approach to saturation

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Investigation of structural and magnetic properties of La doped Co–Mn ferrite nanoparticles in the presence of α-Fe2O3 phase

Cited by 17 publications

References 13 publications

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Influence of Pulse Laser Energy on Structural and Magnetic Properties of CoFe2O4 and CoLa0.01Fe1.99O4 Thin Films

Tailored physical and magnetic properties by La3+ dopants in Mg–Ni–Co nanoferrites: insight into the law of approach to saturation

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Influence of Pulse Laser Energy on Structural and Magnetic Properties of CoFe₂O₄ and CoLa_0.01Fe_1.99O₄ Thin Films