Structural, optical, dielectric and magnetic studies of gadolinium-added Mn-Cu nanoferrites

Kanna, R. Rajesh; Lenin, N.; Sakthipandi, K.; Kumar, Arun

doi:10.1016/j.jmmm.2018.01.019

Cited by 38 publications

(5 citation statements)

References 66 publications

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“…It can be seen that the optical band gap reduced up to x = 0.025 and then increased with the addition of La 3+ contents. Such an increase in the bandgap would potentially make the material being applicable in microwave frequency devices [56]. Another optical band gap (E g ′ ) is also emerging inside of the plots for x = 0.0 -0.05 as expressed in Fig.…”

Section: Optical Studymentioning

confidence: 81%

“…On the other hand, the coercivity is seen to decrease with increasing La 3+ content from 793.1 Oe (x = 0) to 661.4 Oe (x = 0.05). The change in coercivity is due to the combination of different factors, including particle size, crystallinity, crystal structure, morphology, strain, and anisotropy [56]. For the squareness ratio (SQ or Mr/Ms), the obtained values are in the range of 0.6505-0.7869.…”

Section: Magnetic Propertiesmentioning

confidence: 98%

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Structural, optical, electrical, dielectric, molecular vibrational and magnetic properties of La3+ doped Mg–Cd–Cu ferrites prepared by Co-precipitation technique

Arshad

Hasan

Rehman

et al. 2022

Ceramics International

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Section: Optical Studymentioning

confidence: 81%

Section: Magnetic Propertiesmentioning

confidence: 98%

Structural, optical, electrical, dielectric, molecular vibrational and magnetic properties of La3+ doped Mg–Cd–Cu ferrites prepared by Co-precipitation technique

Arshad

Hasan

Rehman

et al. 2022

Ceramics International

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“…The ionic radii of La 3+ , Nd 3+ , and Sm 3+ ions are higher than the atomic radii of Fe atoms, which results in the weakening of the exchange interactions. This causes a decrease in M s for the substituted compounds; thus, the saturation magnetization of the Fe 0.65 Co 0.35 (3 h) system is reduced [ 37 , 38 ].…”

Section: Resultsmentioning

confidence: 99%

Tailoring Magnetic Properties of Fe0.65Co0.35 Nanoparticles by Compositing with RE2O3 (RE = La, Nd, and Sm)

Djellal¹,

Pęczkowski

Mekki

et al. 2022

Materials

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Fe‒Co alloys are the most important soft magnetic materials, which are successfully used for a wide range of applications. In this work, the magnetic properties of lanthanide-substituted (Fe0.65Co0.35)0.95(RE2O3)0.05 (RE = La, Nd, and Sm) nanoparticles, prepared by mechanical alloying, are reported. Our comprehensive studies (X-ray diffraction, Mössbauer spectroscopy, scanning electron microscopy with X-ray energy dispersive spectrometry, SQUID magnetometry and differential scanning calorimetry) have revealed different properties, depending on the dopant type. The RE2O3 addition led to a decrease in the crystallite size and to an increase in the internal microstrain. Moreover, because of the high grain fragmentation tendency of RE2O3, the cold welding between Fe–Co ductile particles was minimized, indicating a significant decrease in the average particle size. The parent Fe0.65Co0.35 alloy is known for its soft ferromagnetism. For the La-substituted sample, the magnetic energy product was significantly lower (0.450 MG.Oe) than for the parent alloy (0.608 MG.Oe), and much higher for the Sm-substituted compound (0.710 MG.Oe). The processing route presented here, seems to be cost-effective for the large-scale production of soft magnetic materials.

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“…Spinel ferrite nanoparticles (SFNPs) have magnificent dielectric, magnetic, catalytic, and optical properties [1][2][3]. Owing to these important properties, ferrites are applicable in various fields like catalysis, organic synthesis, drug delivery, magnetic fluids, information and electronic materials, and wastewater treatment [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Tuning the Magnetic and Catalytic Properties of Manganese Ferrite through Zn2+ Doping: Gas Phase Oxidation of Octanol

Bibi,

Sadiq,

Rizk

et al. 2023

Catalysts

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Spinel ferrites, ZnFe2O4, MnFe2O4, and ZnMnFe2O4, were synthesized using the sol–gel method and thoroughly investigated for their potential as catalytic and magnetic materials. Experiments unveiled that ZnMnFe2O4 exhibited excellent catalytic and magnetic properties, whereas the Density Functional Theory (DFT) calculations provided insight into the excellent performance of ZnMnFe2O4 compared with ZnFe2O4 and MnFe2O4. The catalytic efficiencies of the synthesized spinel ferrites were evaluated against a model reaction, i.e., the gas-phase oxidation of octanol to a corresponding aldehyde, utilizing molecular oxygen as an oxidant. The results indicated that the order of catalytic activity was ZnMnFe2O4 > MnFe2O4 > ZnFe2O4. The reaction was found to follow Langmuir Hinshelwood’s mechanism for dissociative adsorption of molecular oxygen. Owing to their superb catalytic and magnetic properties, mixed ferrites can be extended to a variety of organic transformation reactions.

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Structural, optical, dielectric and magnetic studies of gadolinium-added Mn-Cu nanoferrites

Cited by 38 publications

References 66 publications

Structural, optical, electrical, dielectric, molecular vibrational and magnetic properties of La3+ doped Mg–Cd–Cu ferrites prepared by Co-precipitation technique

Structural, optical, electrical, dielectric, molecular vibrational and magnetic properties of La3+ doped Mg–Cd–Cu ferrites prepared by Co-precipitation technique

Tailoring Magnetic Properties of Fe0.65Co0.35 Nanoparticles by Compositing with RE2O3 (RE = La, Nd, and Sm)

Tuning the Magnetic and Catalytic Properties of Manganese Ferrite through Zn2+ Doping: Gas Phase Oxidation of Octanol

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