Study of structural and magnetic properties of Nd doped zinc ferrites

Sharma, Narayan; Aghamkar, P.; Kumar, Sanjay; Bansal, Meenakshi; ANJU, -; Tondon, R.P.

doi:10.1016/j.jmmm.2014.05.042

Cited by 38 publications

(14 citation statements)

References 21 publications

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“…The essential reection peaks were from the characteristic crystal planes of cubic single phase spinel structure (111), (220), (311), (222), (400), (422), (511), (440), (620) and (533). [14][15][16] It can be observed from Fig. 1, the existence of extra peaks for x ¼ 0.1 sample which refers to orthorhombic ferrite symmetry Pbnm as a second phase (NdFeO 3 ) symbolized by (*).…”

Section: Structural Studymentioning

confidence: 99%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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Section: Structural Studymentioning

confidence: 99%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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“…β_hkl cosθ_hkl=kλ/D+4εsinθ_hkl------- (12) Where D is the average crystallite size from W-H plot and micro strain can be represented as Ԑ. Micro strain is the measurement of the concentration of defects in the sample 19 . Table 1.…”

Section: Fig 2: Variation Of Crystallite Size and Micro Strain With mentioning

confidence: 99%

Untitled

2020

IJPSR

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Zinc Ferrite nanoparticles were prepared by chemical coprecipitation method, using PEG as the capping agent. The synthesized materials were annealed at different temperatures such as 400, 500, 600, 700 and 800 °C and the structural characterization studies were conducted by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectrometer (FTIR), UV-Visible Spectroscopy and Field Emission Scanning Electron Microscopy (FESEM). On heat treatment of the as prepared samples, crystallite size was observed to increase from 5 nm-22 nm. XRD pattern confirmed the single crystalline phase of developed particles. It was observed that the particle size and X-ray density of the annealed ZnFe 2 O 4 nanoparticles linearly increased with increase in annealing temperature and decrease in lattice parameters. The calculated micro strain values were found to be decreasing with increasing annealing temperatures. The nanoparticle size was confirmed using SEM measurements. Furthermore FTIR mapping confirmed the presence of ZnFe 2 O 4 nanoparticles. The calculated band gap (Eg) of zinc ferrite nanoparticles decreases with increase in temperature. The antibacterial activity of ZnFe 2 O 4 nanoparticles was studied against gram negative E-coli pathogenic bacteria. DPPH assay was used to determine the antioxidant activity of the compound. In-vitro anticancer activity was screened by MTT assay against MCF-7 (Human breast adenocarcinoma) cell and A549 (Lung Cancer) cell line. It was observed that the increase in particle size and annealing temperature influence the inhibition rate of these bio properties. The investigation points out that ZnFe 2 O 4 nanoparticle possess less viability with increase in concentration towards MCF-7 cell than A549 cell.

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“…8. In the IR band, variation in spectrum is usually assigned to vibrations of ions in the crystal [46,47]. Two main broad cation-oxygen bands are seen in the IR spectra of Cd x Ni 1-x Fe 2 O 4 (x = 0.4 and 0.8) spinel ferrites between 540-600 (ν 1 ) and 390-450 (ν 2 ).…”

Section: Ftir Analysismentioning

confidence: 99%

Multifunctional Ferrites: Synthesis, Behavior and Biomedical Applications

Nandanwar

2020

Magnetic Oxides and Composites II

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Ferrites are a family of oxides with outstanding magnetic properties. Superparamagnetic iron oxide nanoparticles (SPIONs) are widely used in experimentation for various in vivo applications. All biomedical applications require high value of magnetization and the average size of particles should be less than 100 nm. To prepare multifunctional ferrite nanoparticles, sol-gel auto combustion synthesis technique was adopted. It was found that Cd-Ni substitution results in improving the saturation magnetization and reducing the coercivity values favorable for hyperthermia treatment. In this review, we have discussed magnetic parameters with increasing heating potential of nanoparticles.

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Study of structural and magnetic properties of Nd doped zinc ferrites

Cited by 38 publications

References 21 publications

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

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Multifunctional Ferrites: Synthesis, Behavior and Biomedical Applications

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