Physical, structural, conductive and magneto-optical properties of rare earths (Yb, Gd) doped Ni–Zn spinel nanoferrites for data and energy storage devices

Akhtar, Majid Niaz; Yousaf, Muhammad; Lu, Yuzheng; Khan, Muhammad Azhar; Sarosh, Ali; Arshad, Mina; Niamat, Misbah; Farhan, M. Arshad; Ahmad, Ayyaz; Khallidoon, Muhammad Umar

doi:10.1016/j.ceramint.2021.01.028

Cited by 46 publications

(6 citation statements)

References 36 publications

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“…The values of coercive force (Hc) were found for ferrites prepared from the hysteresis ring and as seen in Table (3), for the pure compound NiCexF2O4 at x = 0, it is (180.237 Oe). It decreases in the substituted compound NiCexFe2-xO4 at x = 0.1 to (125.946 Oe), which is in agreement with previous reports [2,5,38]. The drop in the prepared samples' coercive valuesis caused by exchange interaction between A -B, which leads to the occurrence of spin oscillation on the surface of the nanostructures and, in turn, leads to a decrease in magnetism the ferrite nanosamples , thus, drastic changes for saturation magnetization occur in A-B exchange reactions [39,40].…”

Section: Vsm Analysissupporting

confidence: 93%

Study and Analysis of the Structural and Magnetic Properties of Nickel Iron Substituted with Different Proportions of Cerium

Mahmood¹,

Razeg²,

Ridha³

2023

PJMHS

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Magnetic nanoferrites were prepared from nickel substituted with pure cerium ions by the following formula, NiCexFe2-xO4, where (x = 0.00, 0.02, 0.06, 0.08, 0.1) and in different proportions and weights using the chemical sol-gel method, after which it was calcined at 600, 800, and 1000 °C. And by using different characterization methods to examine the prepared powders such as X-ray diffractometer (XRD), scanning electron microscopy (FESEM) and vibration sample magnetometer (VSM). The X-ray diffraction patterns of the prepared samples confirmed the formation of single-phase soft magnetic nanoparticles of spinel nature and measured the particle size by XRD and FESEM analysis. Through, EDS analysis it was confirmed that there are no extra impurities and that the samples are pure. The VSM technique was used to analyze the magnetic properties of the as-prepared composites, and the saturation magnetization (Ms) and coercivity (Hc) decreased with increasing concentration of compensated cerium ions. These properties reveal the highly magnetic nature of cerium-substituted nickel nanoparticles and their potential for use in modern communication technology. Keywords: Nanoparticles, Nickel ferrites, cerium ion, X-ray diffraction, FESEM analysis, VSM analysis

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Section: Vsm Analysissupporting

confidence: 93%

Study and Analysis of the Structural and Magnetic Properties of Nickel Iron Substituted with Different Proportions of Cerium

Mahmood¹,

Razeg²,

Ridha³

2023

PJMHS

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“…This behavior is seen in the XRD chart where the XRD didn't show any new peaks for a new phase. 3 These findings suggest that the copper ions successfully reacted in ZMT as proved by the XRD ray diffraction character. The samples showed the same behavior for the pure (ZMT) nanoceramic besides that the peaks of the Cu 2+ doped samples can be indexed according to the JCPDS card No.…”

Section: Resultsmentioning

confidence: 71%

“…1,2 In spinel structure oxides, A sites represent the tetrahedral sites while the B sites represent the octahedral sites. 3 Due to their easy processability and outstanding efficiency, leadbased perovskites are now a major element in optoelectronics. Even worth it, lead toxicity is a significant barrier to their broad commercial useability.…”

mentioning

confidence: 99%

Terahertz and UV–VIS Spectroscopy Evaluation of Copper Doped Zinc Magnesium Titanate Nanoceramics Prepared via Sol-Gel Method

Nahrawy

Mansour

Bakr

2021

ECS J. Solid State Sci. Technol.

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In this work, the copper-doped zinc magnesium titanate (ZMT) nanoceramics were prepared by the precursor sol-gel method. The microstructure and surface morphological characteristics of the prepared nanoceramics were established by using X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy approaches. XRD confirms the formation of zinc, magnesium, and copper titanate in the prepared nanoceramic calcined at 700 °C. The samples had shown a strong response of charge carriers in the THz range. The change in THz absorbance spectra with increasing Cu content can be related to the internal transitions that occurred in the ZMT matrix. UV–vis evaluation demonstrates an initial increase in bandgap energy at 0.3 wt.% Cu and then decreases by Cu content increase as a result of s-d and p-d exchange interaction. The prepared copper doped zinc magnesium titanate (ZMT) nanoceramics can be employed in optoelectronic and photocatalysis applications.

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“…Hard ferrites are essentially permanent magnets . Spinel ferrites with low coercivity are mostly known as soft ferrites. , Fe-, Co-, Ni-, Cr-, and Mn-based soft spinels demonstrate magnetic behavior including ferrimagnetism and paramagnetism, which give rise to their application in data storage, spintronic devices that are used in biotechnology, and other electronic industries. − Some spinel ferrites are commercially used as magnetic cores in television, magnetic audio and video recording heads, computer memory chips, office automation, inductors, transformers, telecommunication appliances, medical appliances, and other industrial electronic appliances. − Magnetic spinel ferrites with low loss over power conversion (due to low losses in hysteresis, eddy current, etc.) over a broad temperature range demonstrate conformity to the current industrial needs in this field.…”

Section: Introductionmentioning

confidence: 99%

Wet Chemical Synthesis of Cubic Spinel Ferrites: A Review Addressing Phase Formation Behavior and Nanostructuring

Baruah,

Mukherjee,

Bhagat

et al. 2024

Crystal Growth & Design

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Spinel ferrites, an important class of complex oxides, are imperative worldwide for their well-known magnetic, electrical, optical, catalytic properties, which led tem to be useful in various applications. These can be prepared through various solid state, physical, and wet chemical methods. One difficulty associated with the preparation of complex compositions of spinel ferrite (e.g., AB 2 O 4 where A and B are two different metal cations with +2 and +3 valence states, respectively) is the fact that often individual metal oxides are obtained as impurities with the desired composition. Mostly, the spinel ferrites crystallize into cubic phase, which makes these isotropic oxides difficult to grow in 1D structures like other anisotropic oxides such as hexagonal zinc oxide and tetragonal titania. Existing reports have mostly overlooked the aforementioned challenges for the synthesis of spinel ferrites. Viewing in the same line, in the present Review, we have reviewed different wet chemical approaches for the synthesis of spinel ferrites and made an attempt to correlate the phase formation behavior, composition, and morphology with the synthesis procedure. In addition, the procedures and mechanisms for the synthesis of phase-pure 1D spinel ferrites are also described. This Review offers comprehensive insight for researchers keen on delving into the synthesis and diverse applications of cubic spinel ferrites.

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Physical, structural, conductive and magneto-optical properties of rare earths (Yb, Gd) doped Ni–Zn spinel nanoferrites for data and energy storage devices

Cited by 46 publications

References 36 publications

Study and Analysis of the Structural and Magnetic Properties of Nickel Iron Substituted with Different Proportions of Cerium

Study and Analysis of the Structural and Magnetic Properties of Nickel Iron Substituted with Different Proportions of Cerium

Terahertz and UV–VIS Spectroscopy Evaluation of Copper Doped Zinc Magnesium Titanate Nanoceramics Prepared via Sol-Gel Method

Wet Chemical Synthesis of Cubic Spinel Ferrites: A Review Addressing Phase Formation Behavior and Nanostructuring

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