The crystallographic, magnetic, and electrical properties of Gd3+-substituted Ni–Cu–Zn mixed ferrites

Das, Bablu Chandra; Alam, Fahad; Akther, Arifa

doi:10.1016/j.jpcs.2020.109433

Cited by 34 publications

(2 citation statements)

References 35 publications

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“…Super-exchange interactions: (ii) the presence of the orthoferrite state at the higher concentration (x = 0.003) resists the magnetic response; (iii) the surface distortions lead to the emergence of non-collinear magnetic moments. 41,42 With an increase in the Nd 3+ doping concentration, an increase in coercivity becomes evident. This increase in coercivity can be attributed to the increased accumulation of Nd 3+ ions at the grain boundaries.…”

Section: Raman Peak (Cmmentioning

confidence: 99%

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

Kumar

2024

ECS J. Solid State Sci. Technol.

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Nanoscale particles of neodymium-substituted cobalt-cadmium generic formula for nanoferrite Co0.4Cd0.6NdxFe2−xO4 samples at X = 0.000, 0.003, 0.005, 0.007, 0.009, and 0.011 were studied. The prepared powders were synthesised at low temperatures using citrate gel auto-combustion process. The synthesised powders were calcined at 500 °C for four hours. The morphological properties of the sintered powders were investigated, and their crystal structure was determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD peaks confirmed the spinel ferrite structure. The lattice parameter was calculated from the XRD and showed decreasing trends with 8.442 to 8.308. SEM revealed an irregularly-shaped grain morphology with a homogeneous distribution. Raman spectroscopy analysis showed slight frequency changes in the Raman modes in doped samples, attributed to variations in the cation distribution. The peaks are located at 191, 291, 461, 591, and 671 cm−1. UV spectroscopy studies showed that the energy band gap values decrease with increasing Nd3+ concentration. Direct optical band gap values obtained were 1.238, 1.248, 1.199, 1.135, 1.134, and 1.101 eV with increasing Nd doping. The magnetic hysteresis properties were determined using a SQUID-VSM magnetometer. The hysteresis curves of Co0.4Cd0.6NdxFe2−xO4 nanoparticles show an increase in coercivity with increasing doping concentration. This enhancement is attributed to the multi-domain behaviour.

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Section: Raman Peak (Cmmentioning

confidence: 99%

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

Kumar

2024

ECS J. Solid State Sci. Technol.

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“…The main inconvenience of spinel magnesium-based ceramic materials is their high annealing temperature, over 1300 °C, which causes significant material loss and large energy consumption. Magnetic and dielectric properties of ferrites can be enhanced or altered by modifying various added metallic cations and the sintering temperature and/or time [ 7 , 8 , 9 , 10 , 11 ]. Magnetic and dielectric properties of spinel ferrites AB 2 O 4 are also dependent on the distribution of A and B cations in tetrahedral or octahedral sites, respectively.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Li+ and K+ Added Cations and Annealing Temperature on the Magnetic and Dielectric Properties of Mg-Zn Ferrite

Petrila

Tudorache

2021

Materials

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This paper presents the results of an investigation on the magnetic and dielectric properties of Mg0.5Zn0.5Fe2O4 spinel ferrite with a 1% weight percentage of Li+ and K+ added cations. The addition of metal ions plays an important role in increasing the porosity and favors the formation of ferrite at low temperatures. The goal of this new research is to demonstrate that by selecting the type of metallic cations for addition or choosing an optimal sintering temperature, it may be possible to improve the magnetic and electrical properties of Mg-Zn ferrite. The samples were prepared using sol-gel self-combustion techniques and annealed at 1000°C, 1100°C, and 1200°C. Scanning electron microscopy revealed the shape and grain size of the samples, and the phase composition was analyzed using the X-Ray diffraction technique. The magnetic information, such as remanent magnetization MR, saturation magnetization MS, and coercivity HC, were extracted from the hysteresis loops of the samples. The electrical investigation was focused on the low- and high-frequency dependence of dielectric constant and dielectric losses. The results are discussed in terms of microstructural changes induced by the additions of Li+ and K+ metallic cations. Conclusions are drawn concerning the optimization of magnetic and electrical properties for the development of Mg-Zn ferrite with possible applications in the field of magnetic materials or electronics.

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Structural, electrical and magnetic characterization of Al3+ substituted Mg–Zn ferrites

2022

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The crystallographic, magnetic, and electrical properties of Gd3+-substituted Ni–Cu–Zn mixed ferrites

Cited by 34 publications

References 35 publications

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

The Influence of Li+ and K+ Added Cations and Annealing Temperature on the Magnetic and Dielectric Properties of Mg-Zn Ferrite

Structural, electrical and magnetic characterization of Al3+ substituted Mg–Zn ferrites

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The crystallographic, magnetic, and electrical properties of Gd3+-substituted Ni–Cu–Zn mixed ferrites

Cited by 34 publications

References 35 publications

Retracted: Rare Earth Nd3+ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

Retracted: Rare Earth Nd3+ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

The Influence of Li+ and K+ Added Cations and Annealing Temperature on the Magnetic and Dielectric Properties of Mg-Zn Ferrite

Structural, electrical and magnetic characterization of Al3+ substituted Mg–Zn ferrites

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Product

Resources

About

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications

Retracted: Rare Earth Nd³⁺ Doping Cobalt-Cadmium Nanoferrites Structural, Optical, and Magnetic Properties and Applications