Dysprosium doped Cu0.8Cd0.2DyxFe2-xO4 nano ferrites: A combined impact of Dy3+ on enhanced physical, optical, magnetic, and DC-electrical properties

Vinod, G.; Rajashekhar, K. Eraiah; Naik, J. Laxman

doi:10.1016/j.ceramint.2022.09.265

Cited by 8 publications

(2 citation statements)

References 73 publications

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“…Furthermore, the nonexistence of secondary phases supports the fully soluble nature of Sm 3+ ions in the lattice structure. Despite the lack of a solubility limit for the substitution of Fe 3+ ions by Sm 3+ ions in a lattice structure [53], this is explained based on the fact that the difference in ionic radii between the host and dopant must be less than 15 % for the possible formation of a substitutional solid solution (SSS) according to Hume-Rothery rules [54]. In addition, because the gap between octahedral B places is larger than the gap between the tetrahedral A places and because ion replacements require comparable ionic radii and valence states.…”

Section: Xrdmentioning

confidence: 99%

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions

Matar,

Rabaa,

Moussa

et al. 2023

Phys. Scr.

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Samarium-doped magnesium-nickel-cobalt nanoferrites (Mg1/3 Ni1/3Co1/3)Fe2-xSmxO4, with x = 0.00, 0.01, 0.02, 0.04, and 0.08, were synthesized by the coprecipitation method. X-ray diffractometer (XRD), transmission electron microscopy (TEM), energy dispersive X-ray (EDX), X-ray photoelectric spectroscopy (XPS), Fourier Transform Infra-Red (FTIR), Raman spectroscopy, Mössbauer spectroscopy, and magnetic measurement techniques were used, to study the structure, microstructure, and magnetic properties of the samples. The formation of the cubic spinel structure was confirmed by Rietveld analysis of the XRD data and by the appearance of the two absorption bands close to 400 cm-1 and 600 cm-1 from the FTIR spectrum. Raman spectroscopy verified the formation of the spinel phase in the samples. The elemental composition, valency, and cationic distribution were examined using X-ray photoelectric spectroscopy (XPS) measurements. Experimental findings revealed that doping with Sm3+ ions had a significant effect on the magnetic properties of nanoparticles. The saturation magnetization (Ms) and coercivity field (Hc) values fluctuate depending on the crystallite size (DXRD) of the samples from XRD analysis as the Sm3+ content increases. The magnetization dependence on the applied field was investigated at different ranges of applied fields based on the output of the statistical parameters for the curve fitted using four different forms of the law of approach to saturation. The statistical parameters and physically significant fitted parameters give information on the dependence of magnetization over various applied field regions. A thorough investigation of the output parameters from fitting into various equations reveals that the composition of Mg-Ni-Co ferrites exhibits a dependence of magnetization on the applied field. Room-temperature Mössbauer spectra displayed a mix of the magnetic sextet and central quadrupole doublet, with improvement in the magnetic sextet in the Sm-doped samples. Moreover, Mössbauer spectra at 77 K showed the demise of the quadrupole doublet in all samples and showed two sextets (tetrahedral and octahedral sites). Sm-doping reduced the values of the hyperfine magnetic field of both sextets. All Fe ions can be found in the Fe3+ state, according to the isomer shift values and there is a migration of Fe3+ ions from octahedral to tetrahedral sites upon Sm doping, which was confirmed by XPS measurements.

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Section: Xrdmentioning

confidence: 99%

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions

Matar,

Rabaa,

Moussa

et al. 2023

Phys. Scr.

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“…In recent times, the distinctive magnetic properties [18], electrical properties [19], microwave absorption [20], and photocatalytic properties [21] of composite metal oxides, specifically spinel ferrites, have garnered significant attention. The primary preparation techniques for MFe 2 O 4 -based gas-sensitive materials include the co-precipitation method [22][23][24][25], sol-gel method [26][27][28], and template synthesis method [29].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Spinel Ferrite (MFe2O4) Chemiresistive Based Gas Sensors

et al. 2023

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Gas-sensing technology has gained significant attention in recent years due to the increasing concern for environmental safety and human health caused by reactive gases. In particular, spinel ferrite (MFe2O4), a metal oxide semiconductor with a spinel structure, has emerged as a promising material for gas-sensing applications. This review article aims to provide an overview of the latest developments in spinel-ferrite-based gas sensors. It begins by discussing the gas-sensing mechanism of spinel ferrite sensors, which involves the interaction between the target gas molecules and the surface of the sensor material. The unique properties of spinel ferrite, such as its high surface area, tunable bandgap, and excellent stability, contribute to its gas-sensing capabilities. The article then delves into recent advancements in gas sensors based on spinel ferrite, focusing on various aspects such as microstructures, element doping, and heterostructure materials. The microstructure of spinel ferrite can be tailored to enhance the gas-sensing performance by controlling factors such as the grain size, porosity, and surface area. Element doping, such as incorporating transition metal ions, can further enhance the gas-sensing properties by modifying the electronic structure and surface chemistry of the sensor material. Additionally, the integration of spinel ferrite with other semiconductors in heterostructure configurations has shown potential for improving the selectivity and overall sensing performance. Furthermore, the article suggests that the combination of spinel ferrite and semiconductors can enhance the selectivity, stability, and sensing performance of gas sensors at room or low temperatures. This is particularly important for practical applications where real-time and accurate gas detection is crucial. In conclusion, this review highlights the potential of spinel-ferrite-based gas sensors and provides insights into the latest advancements in this field. The combination of spinel ferrite with other materials and the optimization of sensor parameters offer opportunities for the development of highly efficient and reliable gas-sensing devices for early detection and warning systems.

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Influence of Ru doping on structural, optical, and photocatalytic properties of (Cd-Ni-Mn) nanoferrites

Kassem,

Aridi,

Awad

2023

Environ Sci Pollut Res

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Dysprosium doped Cu0.8Cd0.2DyxFe2-xO4 nano ferrites: A combined impact of Dy3+ on enhanced physical, optical, magnetic, and DC-electrical properties

Cited by 8 publications

References 73 publications

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions

Recent Progress in Spinel Ferrite (MFe2O4) Chemiresistive Based Gas Sensors

Influence of Ru doping on structural, optical, and photocatalytic properties of (Cd-Ni-Mn) nanoferrites

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Dysprosium doped Cu0.8Cd0.2DyxFe2-xO4 nano ferrites: A combined impact of Dy3+ on enhanced physical, optical, magnetic, and DC-electrical properties

Cited by 8 publications

References 73 publications

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm3+ sions

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm3+ sions

Recent Progress in Spinel Ferrite (MFe2O4) Chemiresistive Based Gas Sensors

Influence of Ru doping on structural, optical, and photocatalytic properties of (Cd-Ni-Mn) nanoferrites

Contact Info

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Resources

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Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions

Structural, Magnetic, and Mössbauer Investigation of Mg-Ni-Co ferrites doped by Sm³⁺ sions