Effect of Nd 3+ substitution on structural and magnetic properties of Mg–Cd ferrites synthesized by microwave sintering technique

Nanosized ferrite is one of the new type of magnetic materials which exhibits better magnetic properties than the bulk form and therefore can be used in many fields such as chemical industries, electronic equipment, aerospace, defense, etc. Moreover, these ferrites are used in high-capacity storage devices, electromagnetic shielding, cores, magnetic separation, gas sensors, biosensors, humidity sensors, sodium ion batteries, solar cells, ferrofluilds, switching, high-frequency electromagnetic absorbing materials (EAM), drug delivery, etc. due to the potential characteristics of nanoferrites such as good magnetization, coercive field, and remanence magnetization. [1][2][3][4] In general, the spinel nanoferrites possess cubic spinel structure with two crystal lattice sites which are represented by tetrahedral (A sites) and octahedral (B sites) sites. Among spinel nanoferrites, mixed spinel nanoparticles such as NiCu, CoZn, NiCuZn, NiMg ferrites, and rare-earth (Er, Nd, La, Gd, etc.) doped ferrite nanoparticles have applications in many technological fields because of their better electromagnetic compatibility, considerable coercivity, well chemical stability, and good electromagnetic performance in the high-frequency region. [5][6][7][8][9][10] There is an increasing demand of electronic devices such as wireless communication devices, local area network (LAN) systems, computers, bluetooth technologies, high-speed data-transferring devices, and medical diagnostic tools which are operating in the microwave frequency range. [11,12] It resulted in electromagnetic interference (EMI), which is the disturbance that affects an electrical circuit of a device due to an electromagnetic radiation from another electrical circuit and signal degradation in microwavebased electric devices.

show abstract

“…Following equations were used for calculating the anisotropy constant, magnetic moment. [ 50,51 ]

Anisotropy constant (K) = \frac{H_{normalC} X M_{normals}}{0.96}

Magnetic moment (η B) = \frac{M olecular weight \times suturation magnetization}{5585}

…”

Section: Resultsmentioning

confidence: 99%

“…[49] Following equations were used for calculating the anisotropy constant, magnetic moment. [50,51] Anisotropy constant ðKÞ ¼…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Excellent Microwave Absorbing Properties of Nd³⁺‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Kambale

Sagar²,

Patange

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…[ 28 ] These bands are common characteristics of spinal structure. [ 29,30 ] The vibration of the unit cell of the cubic spinel can be constructed in the tetrahedral and octahedral sites. [ 31,32 ]…”

Section: Resultsmentioning

confidence: 99%

Preparation of Zinc Ferrite by Solid State Method and Its Characterizations

Jadhav

Salunke

Jadhav

et al. 2021

Macromolecular Symposia

Self Cite

View full text Add to dashboard Cite

The zinc ferrite nanoparticles are synthesized by a simple and low cost solid state technique. The synthesized powder is pre‐sintered at 200°C for 5 h and annealing at different temperatures. The crystal structure, phase purity, optical, and morphological analysis studies of synthesized ferrites materiel are investigated by X‐ray diffraction (XRD), scanning electron microscopic (SEM), UV–Visible spectroscopy, and Fourier transform infrared (FTIR) spectroscopic techniques, respectively. The XRD pattern of all zinc ferrite samples shows the formation of single‐phase cubic spinel structure. The optical band gap of zinc ferrite is found to be 1.96 eV. The change in morphology of zinc ferrite is observed due to the effect of the annealing temperature.

show abstract

“…The presence of two main absorption bands near about around 600 and 400 cm −1 corresponding to tetrahedral (A) and octahedral (B) sites in the FTIR spectra of Mg 0.55 Cu 0.05 Zn 0.4 Yb x Fe 2‐ x O 4 (where x = 0, 0.01, 0.02, and 0.03) system shown in Figure confirm the formation of ferrite. [ 11,12 ] The first absorption band ϑ 1 in range 546.47–560.56 cm –1 corresponding to tetrahedral (A) sites was observed, and this can be associated to metal cation – oxygen bond stretching vibrations. Whereas second absorption band ϑ 2 appears in range 360.25–338.70 cm −1 analogous to octahedral (B) sites associated with metal cation – oxygen bond stretching vibrations.…”

Section: Resultsmentioning

confidence: 99%

Studies on Structural Properties of Ytterbium (Yb³⁺) Substituted Mg–Cu–Zn Nano‐ferrites

Patil

Pawar

Patil

et al. 2021

Macromolecular Symposia

View full text Add to dashboard Cite

Nano‐ferrites with composition Mg0.55Cu0.05Zn0.4YbxFe2‐xO4 (where x = 0.0, 0.01, 0.02, and 0.03) are prepared by chemical method. The single‐phase cubic spinel structure ferrite formation is confirmed from X‐ray diffraction (XRD) analysis. The lattice constant and crystallite size of Mg–Cu–Zn ferrites found to be decreases with increasing concentration of Yb3+ content. The two major absorption bands appear in the range 432.16–441.55 cm–1 and 568.25–578.56 cm–1 corresponding to octahedral and tetrahedral sites in the Fourier transform infrared (FTIR) spectra suggest formation of ferrites. Morphological study shows the formation of nano‐ferrites. The EDX analysis approves the formation of required ferrites in desired stoichiometric ratio without any impurity phase.

show abstract

Effect of Nd 3+ substitution on structural and magnetic properties of Mg–Cd ferrites synthesized by microwave sintering technique

Cited by 35 publications

References 48 publications

Excellent Microwave Absorbing Properties of Nd³⁺‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Excellent Microwave Absorbing Properties of Nd³⁺‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Preparation of Zinc Ferrite by Solid State Method and Its Characterizations

Studies on Structural Properties of Ytterbium (Yb³⁺) Substituted Mg–Cu–Zn Nano‐ferrites

Contact Info

Product

Resources

About

Effect of Nd 3+ substitution on structural and magnetic properties of Mg–Cd ferrites synthesized by microwave sintering technique

Cited by 35 publications

References 48 publications

Excellent Microwave Absorbing Properties of Nd3+‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Excellent Microwave Absorbing Properties of Nd3+‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Preparation of Zinc Ferrite by Solid State Method and Its Characterizations

Studies on Structural Properties of Ytterbium (Yb3+) Substituted Mg–Cu–Zn Nano‐ferrites

Contact Info

Product

Resources

About

Excellent Microwave Absorbing Properties of Nd³⁺‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Excellent Microwave Absorbing Properties of Nd³⁺‐Doped Ni–Zn Ferrite/PANI Nanocomposite for Ku Band

Studies on Structural Properties of Ytterbium (Yb³⁺) Substituted Mg–Cu–Zn Nano‐ferrites