Theoretical and experimental investigations: Synergetic effect of Yb–Cu substitution on different properties of hexagonal ferrites

Idrees, Mishal; Abbas, Faisal; Sadiq, Imran; Khan, Hasan M.; Sadiq, Farhan; Nadeem, Muhammad; Hussain, Sajjad; Riaz, Saira; Naseem, Shahzad

doi:10.1016/j.jpcs.2022.110904

Cited by 8 publications

(2 citation statements)

References 43 publications

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“…To theoretically evaluate the M‐H loops of the prepared X‐type hexagonal series, the law of approach to saturation magnetization (LAS) has been incorporated and the theoretical expression of LAS is as following: [ 50 ]

\begin{equation}{\mathrm{M}} = {{\mathrm{M}}}_{\mathrm{s}}\left( {1 - \frac{{\mathrm{b}}}{{{{\mathrm{H}}}^2}}} \right) + \kappa {\mathrm{H}}\end{equation}

where M is the magnetization, M s is saturation magnetization, H is applied field and b is the constant having the expression b =

\frac{{4{{\mathrm{k}}}^2}}{{15{\mathrm{Ms}}^2}}

(where k is the cubic anisotropy constant), the κH factor is the forced magnetization and neglected in this approximation.…”

Section: Resultsmentioning

confidence: 99%

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Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Idrees,

Sadiq,

Khan

et al. 2024

Cryst. Res. Technol.

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The main theme of this work is to synthesize and investigate different properties of Pr3+‐Cu2+ substituted X‐type hexaferrite Sr2‐xPrxCo2Fe28‐yCuyO46 with concentration (x = 0, 0.02, 0.06, 0.1 and y = 0, 0.1, 0.3, 0.5) by adopting the sol–gel method. The XRD patterns show the single phase for all the samples. The Pr3+‐Cu2+ substitution in pure X‐type hexaferrites changes the structural parameters. The increment in dielectric properties with Pr3+‐Cu2+ substitution is observed and the patterns show anomalous dielectric behavior. The FTIR analysis also confirms the single phase for the prepared materials. The magnetic properties of the material are enhanced with additives. The difference in saturation magnetization, coercivity, and remanence is observed on the basis of allocated cations onto the different lattice sites. The linear increase in saturation magnetization, remanence, and coercivity make them useful as permanent magnets. The thermal analysis is carried out to know the sintering temperature at which the single X‐type phase can be attained. The material exhibits the minimum value of reflection loss (microwave absorption) at higher frequencies that make this material useful to act as microwave absorbing material (MAM) for super high frequency (SHF) devices.

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\begin{equation}{\mathrm{M}} = {{\mathrm{M}}}_{\mathrm{s}}\left( {1 - \frac{{\mathrm{b}}}{{{{\mathrm{H}}}^2}}} \right) + \kappa {\mathrm{H}}\end{equation}

where M is the magnetization, M s is saturation magnetization, H is applied field and b is the constant having the expression b =

\frac{{4{{\mathrm{k}}}^2}}{{15{\mathrm{Ms}}^2}}

(where k is the cubic anisotropy constant), the κH factor is the forced magnetization and neglected in this approximation.…”

Section: Resultsmentioning

confidence: 99%

“…To theoretically evaluate the M-H loops of the prepared X-type hexagonal series, the law of approach to saturation magnetization (LAS) has been incorporated and the theoretical expression of LAS is as following: [50]…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Idrees,

Sadiq,

Khan

et al. 2024

Cryst. Res. Technol.

Self Cite

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Blowing‐Combustion Synthesis of Sponge‐like Ni_xZn_1−xFe₂O₄ and Its Structural and Magnetic Properties

et al. 2023

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Spinel ferrites have been widely used in various fields, among which nickel‐zinc (NiZn) ferrites have drawn much attention due to their high electrical resistivity as well as low eddy current loss. To accommodate highly‐integrated modern electronic devices, the preparation methods for nano/micro‐sized NiZn ferrites have been widely discussed. Nevertheless, these current synthesis routes are usually cost/time‐consuming, which hinders their large‐scale production for practical applications. Herein, we present a facile, low‐cost synthesis strategy for NiZn ferrites (NixZn1−xFe2O4, x=0, 0.25, 0.5, 0.75 and 1) through a blowing‐combustion method. The effect of Ni/Zn molar concentration on the structure, morphology as well as magnetic properties has been thoroughly investigated through X‐ray diffraction, Raman spectroscopy, scanning electron microscopy and vibrating sample magnetometer. Thanks to the synergetic effect of the pure phase and moderate Ni molar concentration, the Ni0.75Zn0.25Fe2O4 shows an enhanced saturation magnetization of 44.98 emu/g. More importantly, this blowing‐combustion method may also be commonly applied to other spinel ferrites with different stoichiometric ratios and heteroatom doping.

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Structural, optical and dielectric properties of aluminum-substituted SrAl2xFe12-2xO19 x = (0.0,0.2,0.4,0.6,0.8,1.0) M-type hexagonal ferrites

Dilshad

Khan

Zahid

et al. 2022

J Mater Sci: Mater Electron

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Theoretical and experimental investigations: Synergetic effect of Yb–Cu substitution on different properties of hexagonal ferrites

Cited by 8 publications

References 43 publications

Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Blowing‐Combustion Synthesis of Sponge‐like Ni_xZn_1−xFe₂O₄ and Its Structural and Magnetic Properties

Structural, optical and dielectric properties of aluminum-substituted SrAl2xFe12-2xO19 x = (0.0,0.2,0.4,0.6,0.8,1.0) M-type hexagonal ferrites

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Theoretical and experimental investigations: Synergetic effect of Yb–Cu substitution on different properties of hexagonal ferrites

Cited by 8 publications

References 43 publications

Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Revelation of the Microwave Absorption Properties of Nano‐Sized Doubly Substituted Hexagonal Ferrites

Blowing‐Combustion Synthesis of Sponge‐like NixZn1−xFe2O4 and Its Structural and Magnetic Properties

Structural, optical and dielectric properties of aluminum-substituted SrAl2xFe12-2xO19 x = (0.0,0.2,0.4,0.6,0.8,1.0) M-type hexagonal ferrites

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Blowing‐Combustion Synthesis of Sponge‐like Ni_xZn_1−xFe₂O₄ and Its Structural and Magnetic Properties