Study of Various Site Interactions Using Maximum Entropy Method on Mechanically Alloyed Ni0.5Zn0.5Fe2 O 4 Nanoferrite Particles Sintered from 1100 to 1400 ∘C

Ramachandran, K.; Kannan, Y. B.; Srinivasan, N.; Ismail, Ismayadi

doi:10.1007/s10948-016-3736-3

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…This is responsible for the change in

r_{normalA}

and

r_{normalB}

values. [ 31 ] A similar trend of

r_{normalA}

and

r_{normalB}

values is reported by Ateia et al [ 28 ]…”

Section: Resultssupporting

confidence: 81%

“…[ 29,30 ] The Reitveld refinement is used to refine the background, pseudo‐Voigt, asymmetry, preferred orientation, scale, lattice parameters, etc. [ 31 ] Using the proposed cation distribution, the raw XRD data was refined for their structural parameters. [ 32 ] On the basis of the proposed cation distribution, the occupancy parameters for the tetrahedral A site and octahedral B sites are constrained to keep the chemical composition.…”

Section: Resultsmentioning

confidence: 99%

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Structural, Magnetic, and Optical Studies of Ni–Mg Ferrites Synthesized by Polyol Method

Dhanyaprabha

Jacob

Mohan

et al. 2021

Physica Status Solidi (a)

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Magnesium and nickel‐substituted ferrites belong to an important class of spinel ferrites with wide variety of applications. Herein, preparation and characterization of pure, single‐phase Ni–Mg ferrites using a cost‐effective method, which yield high‐quality nanosized particles with good chemical homogeneity, are reported. A series of NixMg(1−x)Fe2O4 nanocrystalline powders (x = 1,0.75,0.5,0.25,0) is prepared using polyol method and a detailed investigation on the effect of dopant substitution on microstructural magnetic as well as optical properties is conducted. The as‐prepared samples are subsequently characterized using X‐ray diffractometer (XRD), X‐ray photoelectron spectroscopy (XPS), Fourier‐transform infrared spectroscopy (FTIR), Field‐emission scanning electron microscope (FESEM), Brunauer, Emmett, and Teller (BET), Mossbauer spectroscopy, Vibrating sample magnetometer (VSM), and UV–visible diffuse reflectance spectroscopy. Rietveld refinement confirms the single‐phase cubic structure with Fd‐3m (227) space group of NixMg(1−x)Fe2O4 series. The cation distribution can be represented as [Mg(1−x−y)Fe(δ)]A[Mg(x)Ni(y)Fe(2−δ)]BO4. FTIR bands at the finger print region of ferrites and Mossbauer analysis confirms the proposed cation distribution from Rietveld refinement. The magnetic nature is confirmed from Mossbauer and VSM analysis. In VSM, the saturation magnetization of the samples exhibits an increasing trend with nickel substitution. The optical studies of the series NixMg(1−x)Fe2O4 are conducted by UV–visible diffuse reflectance spectroscopy.

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“…This is responsible for the change in