Magnetic interactions and electrical properties of Tb3+ substituted NiCuZn ferrites

Kabbur, S.M.; Waghmare, Shivaji D.; Nadargi, Digambar Y.; Sartale, Shrikrishna D.; Kambale, Rahul C.; Ghodake, U. R.; Suryavanshi, S.S.

doi:10.1016/j.jmmm.2018.10.041

Cited by 44 publications

(10 citation statements)

References 35 publications

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“…Stogryn showed that when the temperature of the sodium chloride solution increased, the dielectric constant decreased, supporting our result [ 38 ]. Our result is also in conformity with the observation that when the conductivity of a material increases, its permittivity decreases [ 39 ].…”

Section: Resultssupporting

confidence: 92%

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

et al. 2022

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The post-ionization dynamics of chemo-treated and untreated 4T1 breast cancer cells ionized by laser trapping techniques are studied. We have determined each cell’s charge and refractive index by developing a theoretical model for the forces determining the post-ionization dynamics. The shift in a cell’s refractive index due to an intense oscillating electric field was studied, and the results are reported here. We observed that a trapped cell, as it becomes charged, will eventually exit the trap perpendicular to the beam’s direction; this means that the electric force of the cell overcomes the trapping force. As a result, the cell’s conductivity changes due to the oscillating field, causing a decrease in the cell’s refractive index.

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Section: Resultssupporting

confidence: 92%

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

et al. 2022

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“…Figure shows the particle size distributions obtained by statistical analyses of the SEM images and their histograms. The size distribution is obtained from the SEM images by calculating the proportion of grain area with the following equation where d i is the size (equivalent disk diameter) of a given particle, S is the full area of all particles on the image, and n i is the number of particles with a given size. − The APSs of the [Ni 0.4 Cu 0.2 Zn 0.4 ](Fe 2– x Dy x )O 4 ( x = 0.00–0.04) SFNPs were specified by the maxima of the Gaussian function recitation the size distribution plots. The graphs of particle size distributions (stereological analysis data) were added to the SEM images.…”

Section: Results and Discussionmentioning

confidence: 99%

“…In general, the Ms value at room temperature increases as the ionic radius of the rare-earth ion increases. 44 Kulal et al synthesized Co 0.50 Zn 0.50 Fe 2– x Dy x O 4 ferrite particles and found that as the value of “ x ” increased, the lattice constant decreased, the crystallite size increased, and the porosity increased. 42 …”

Section: Introductionmentioning

confidence: 99%

“…They found that the Pr 3+ doping enhanced the value of Ms at room temperature, considering that Pr 3+ has a much larger ionic radius compared to Fe 3+ while Eu 3+ or Gd 3+ substitution decreased the Ms values. In general, the Ms value at room temperature increases as the ionic radius of the rare-earth ion increases . Kulal et al synthesized Co 0.50 Zn 0.50 Fe 2– x Dy x O 4 ferrite particles and found that as the value of “ x ” increased, the lattice constant decreased, the crystallite size increased, and the porosity increased …”

Section: Introductionmentioning

confidence: 99%

“…In general, the Ms value at room temperature increases as the ionic radius of the rare-earth ion increases. 44 Kulal et al synthesized Co 0.50 Zn 0.50 Fe 2−x Dy x O 4 ferrite particles and found that as the value of "x" increased, the lattice constant decreased, the crystallite size increased, and the porosity increased. 42 In the present paper, to the best of our knowledge, there is no report that has investigated the alteration of Dy 3+ ion concentration on the structural parameters and magnetic, electrical, and microwave properties of the The crystal structure parameters were investigated using Xray diffraction (XRD).…”

Section: Introductionmentioning

confidence: 99%

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Influence of Dy³⁺Ions on the Microstructures and Magnetic, Electrical, and Microwave Properties of [Ni_0.4Cu_0.2Zn_0.4](Fe_2–xDy_x)O₄(0.00 ≤x≤ 0.04) Spinel Ferrites

et al. 2021

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[Ni 0.4 Cu 0.2 Zn 0.4 ](Fe 2– x Dy x )O 4 spinel ferrite nanoparticles with different Dy 3+ concentrations (0.00 ≤ x ≤ 0.04) were prepared by a citrate sol–gel auto-combustion technique. A strong correlation among Dy concentration, structural parameters, and magnetic, electrical, and microwave properties was established. An increase in the Dy 3+ concentration is the reason for a rise in the crystal structure parameters (due to different ionic radii of Fe and Dy ions) and a slight increase in the average particle size with a minor reduction in the specific surface area. It was observed that Dy 3+ ions prefer to occupy the octahedral B site due to their large ionic radius (0.91 Å). The explanation of the electrical and magnetic properties was given in terms of the features of Dy 3+ –O 2– –Fe 3+ dysprosium–oxygen–iron indirect exchange. The occurrence of the intensive changes in amplitude–frequency characteristics was observed from 1.6 to 2.7 GHz. The explanation of electromagnetic absorption was given in terms of the peculiarities of the microstructure (resonance of domain boundaries). The results open perspectives in the utilization of [Ni 0.4 Cu 0.2 Zn 0.4 ](Fe 2– x Dy x )O 4 spinel ferrite nanoparticles as functional materials for targeted drug delivery and hyperthermia applications.

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Single-domain/multidomain bulk magnetic characteristics of Co-substituted Ni–Zn ferrites: tailoring the effect of Co substitution

Gawas

Verenkar

2022

J Mater Sci: Mater Electron

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Magnetic interactions and electrical properties of Tb3+ substituted NiCuZn ferrites

Cited by 44 publications

References 35 publications

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

Influence of Dy³⁺Ions on the Microstructures and Magnetic, Electrical, and Microwave Properties of [Ni_0.4Cu_0.2Zn_0.4](Fe_2–xDy_x)O₄(0.00 ≤x≤ 0.04) Spinel Ferrites

Single-domain/multidomain bulk magnetic characteristics of Co-substituted Ni–Zn ferrites: tailoring the effect of Co substitution

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Magnetic interactions and electrical properties of Tb3+ substituted NiCuZn ferrites

Cited by 44 publications

References 35 publications

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

Measurement of Charge and Refractive Indices in Optically Trapped and Ionized Living Cells

Influence of Dy3+Ions on the Microstructures and Magnetic, Electrical, and Microwave Properties of [Ni0.4Cu0.2Zn0.4](Fe2–xDyx)O4(0.00 ≤x≤ 0.04) Spinel Ferrites

Single-domain/multidomain bulk magnetic characteristics of Co-substituted Ni–Zn ferrites: tailoring the effect of Co substitution

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Influence of Dy³⁺Ions on the Microstructures and Magnetic, Electrical, and Microwave Properties of [Ni_0.4Cu_0.2Zn_0.4](Fe_2–xDy_x)O₄(0.00 ≤x≤ 0.04) Spinel Ferrites