Investigation of electromagnetic shielding effectiveness and magnetic phase transitions of neodymium-doped Cu0.25Ni0.5Zn0.25Fe2–Nd O4 nanoferrites

Journal of Rare Earths, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Exploring energy mechanisms involved in the luminescence reduction due to Ce3+ doping via core-multishell upconversion nanoparticles highly doped with Ho3+ and Yb3+

Ceramics International, Год журнала: 2024, Номер 50(10), С. 17593 - 17603

Опубликована: Март 3, 2024

Язык: Английский

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Rare earth Gd3+-substituted Co spinel nanoferrites structural, dielectric and magnetic properties

Chemical Physics Impact, Год журнала: 2024, Номер 8, С. 100585 - 100585

Опубликована: Март 27, 2024

Gadolinium-doped cobalt ferrite CoGdxFe2-xO4 (CGF) were produced using citrate gel auto-combustion method (x = 0-0.025 at an interval of 0.005). An investigations on the impact Gd3+ ions structural, dielectric, and magnetic properties conducted. The synthesized materials characterized following techniques: X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, ultraviolet visible spectroscopy (UV), impedance (dielectric) analysis, vibrating sample magnetometer (VSM). crystalline size ranging from 48 to 13 nm. Williamson-Hall plots utilized examine lattice strain peak broadening each sample. spectra used confirm phase identification spinel structure. results FTIR examinations show that strong metal oxide bonds can be found in tetrahedral octahedral sites wavelengths 351–376 cm−1 567–574 cm−1, respectively. obtained samples study optical energy bandgap (Eg), which vary 2.01 eV 2.45 they are semiconducting materials.The Maxwell-Wagner model Koop's theory have both been behaviour dielectric properties. constant room temperature 673 K frequency range 50 Hz–1 MHz constant, loss, AC electrical conductivity, impedance. charts how conductivity was impacted by grain boundary mechanisms. In relation applied field 100 kOe, magnetization measured 3K 300K. blocking (TB), exhibits super-paramagnetic behaviour, is approximately 359K according zero-field cooling ZFC cooling. FC experiments carried out 3K–360K under Oe.

Язык: Английский

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Magnetic response of Ho3+ doped Ni0.4Cu0.6HoyFe2-yO4 spinel ferrites and their correlation with crystallite size

Ceramics International, Год журнала: 2024, Номер 50(19), С. 37077 - 37084

Опубликована: Июль 8, 2024

Язык: Английский

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Integrating the structural, electro‐optical, dielectric, and magnetic features of Co–Mg–La ferrites/graphene composites

Journal of the American Ceramic Society, Год журнала: 2024, Номер unknown

Опубликована: Дек. 26, 2024

Abstract Graphene nanoplatelets (GNPs) offer excellent support for a diverse array of composite applications. Herein, Co 0.5 Mg Fe 1.8 La 0.2 O 4 (CMFL) and its composites were prepared by the sol–gel autocombustion method. X‐ray diffraction confirmed formation single‐phase structure, with both average crystallite size (34.33–46.30 nm) lattice constant (8.292–8.411 Å) increasing GNP insertion. The presence graphene in nanocomposites was Raman spectroscopy, which revealed D band at 1376.38 cm −1 . Fourier transform infrared spectra indicated existence absorption bands corresponding to tetrahedral (534.46–525.94 ) octahedral (456.62–454.95 structures. optical bandgap energy ( E g varied when compositions samples changed, lowest value being 2.58 eV CMFL/2.5 wt.% GNPs. DC electrical resistivity increased from 6.73 × 10 1.07 6 Ω cm, indicating that materials might be appropriate use transformers telecommunications devices. With frequency, dielectric loss decreased, whereas AC conductivity improved. Cole–Cole behavior showed conduction mechanism had non‐Debye relaxation characteristics. saturation magnetization 25.86 42.75 emu/g synthesized samples, coercivity demonstrated variable trend.

Язык: Английский

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Synergistic Effect of Zn Doping on the Structural, Optical, and Photocatalytic Properties of Sol–Gel Derived Spinel Ferrite for Tetracycline Photodegradation

Catalysis Letters, Год журнала: 2025, Номер 155(4)

Опубликована: Март 12, 2025

Язык: Английский

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Effect of Rare Earth Gd3+ Doping on the Structural, Magnetic and Optical Properties Co-Cd Spinel Nanoferrites

Semiconductors, Год журнала: 2025, Номер 59(2), С. 139 - 148

Опубликована: Фев. 1, 2025

Язык: Английский

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Structural, Morphological, Optical, and Magnetic Properties of Rare Earth Bi3+ Doped Ni–Co Ferrites via the Citate-Gel Auto Combustion Method and Applications

Journal of the Indian Chemical Society, Год журнала: 2025, Номер unknown, С. 101680 - 101680

Опубликована: Март 1, 2025

Язык: Английский

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Exploring Cu-substituted Zn nanoferrites: synthesis, structural, magnetic, morphological, and antibacterial properties

Journal of Sol-Gel Science and Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Язык: Английский

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The effects of Ce3+ ions on the structural, optical, Raman, photoluminescence, photocatalysis, magnetic, and electric properties of Co-Mg-Bi ferrites

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

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