Rare earth Gd3+ substituted on cobalt ferrites: Structural and dielectric studies by citrate gel autocombustion method DOI

K. Vani,

N. Hari Kumar,

D. Ravinder

et al.

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 160, P. 111920 - 111920

Published: Dec. 13, 2023

Language: Английский

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

K Seethalakshmi,

K. Sakthipandi,

B. Sethuraman

et al.

Journal of Rare Earths, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

3
Synergistic Effect of Zn Doping on the Structural, Optical, and Photocatalytic Properties of Sol–Gel Derived Spinel Ferrite for Tetracycline Photodegradation DOI
Muhammad Hisham Al Nasir, Muhammad Yasar, Abdul Maajid Khokhar

et al.

Catalysis Letters, Journal Year: 2025, Volume and Issue: 155(4)

Published: March 12, 2025

Language: Английский

Citations

0
Effect of Rare Earth Gd3+ Doping on the Structural, Magnetic and Optical Properties Co-Cd Spinel Nanoferrites DOI

N. Hari Kumar,

Jhatoth Venkateshwarlu,

M.S. Latha

et al.

Semiconductors, Journal Year: 2025, Volume and Issue: 59(2), P. 139 - 148

Published: Feb. 1, 2025

Language: Английский

Citations

0
Structural, Morphological, Optical, and Magnetic Properties of Rare Earth Bi3+ Doped Ni–Co Ferrites via the Citate-Gel Auto Combustion Method and Applications DOI

S. Karuna,

N. V. Krishna Prasad,

N. Hari Kumar

et al.

Journal of the Indian Chemical Society, Journal Year: 2025, Volume and Issue: unknown, P. 101680 - 101680

Published: March 1, 2025

Language: Английский

Citations

0
Exploring Cu-substituted Zn nanoferrites: synthesis, structural, magnetic, morphological, and antibacterial properties DOI

Mohammed B. Jumaa,

Tahseen H. Mubarak, Ali M. Mohammad

et al.

Journal of Sol-Gel Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Language: Английский

Citations

0
The effects of Ce3+ ions on the structural, optical, Raman, photoluminescence, photocatalysis, magnetic, and electric properties of Co-Mg-Bi ferrites DOI

B. Naresh,

N. Hari Kumar,

J. Laxman Naik

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0
Exploring energy mechanisms involved in the luminescence reduction due to Ce3+ doping via core-multishell upconversion nanoparticles highly doped with Ho3+ and Yb3+ DOI
Junhao Xu, Bing Wang,

Guangli Shi

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(10), P. 17593 - 17603

Published: March 3, 2024

Language: Английский

Citations

3
Rare earth Gd3+-substituted Co spinel nanoferrites structural, dielectric and magnetic properties DOI Creative Commons

K. Vani,

N. Hari Kumar,

D. Ravinder

et al.

Chemical Physics Impact, Journal Year: 2024, Volume and Issue: 8, P. 100585 - 100585

Published: March 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.

Language: Английский

Citations

3
Integrating the structural, electro‐optical, dielectric, and magnetic features of Co–Mg–La ferrites/graphene composites DOI
M.S. Hasan,

M.I. Khan,

Gurudas Mandal

et al.

Journal of the American Ceramic Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 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.

Language: Английский

Citations

3
Magnetic response of Ho3+ doped Ni0.4Cu0.6HoyFe2-yO4 spinel ferrites and their correlation with crystallite size DOI
Manal F. Abou Taleb, Mohamed M. Ibrahim, Ata Ur Rahman

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(19), P. 37077 - 37084

Published: July 8, 2024

Language: Английский

Citations

2