Article
Materials Science, Multidisciplinary
Prajna P. Mohapatra, Pamu Dobbidi
Summary: Carbon black reinforced lithium ferrite composites (LFO/CB) were synthesized to enhance the electromagnetic interference (EMI) shielding effectiveness (SE). The composites showed high total SE and absorption efficiency at specific CB concentrations, and the properties of the materials can be tailored by varying the CB content. These findings suggest that LFO/CB composites have potential applications in the defense and telecommunication sectors.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Ceramics
Lanbing Liu, Khai D. T. Ngo, Guo-Quan Lu
Summary: 3D printing has the potential to simplify the fabrication of novel magnetic components, leading to miniaturization of power electronic devices. The main challenge is the lack of functional magnetic feedstock with various choices of magnetic permeabilities. By adding different fractions of silica particles, the permeability of NiCuZn ferrite feedstock can be tailored. This paper developed a formulation guideline for the feedstock and accurately predicted the permeability of the composite ferrite.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Xiuyuan Fan, Guohua Bai, Zhenhua Zhang, Qiming Chen, Jiaying Jin, Jiafeng Xu, Xuefeng Zhang, Mi Yan
Summary: NiCuZn ferrite with superior high-frequency properties was prepared by synergistic doping of V2O5 and Bi2O3, which effectively reduced the power loss at megahertz frequencies. The optimized sample exhibited excellent magnetic properties closely related to the notable grain boundary structure.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Prajna P. Mohapatra, Pamu Dobbidi
Summary: Erbium substituted lithium ferrite/carbon black composites were synthesized and their morphological, structural, complex permeability, permittivity, and EMI shielding effectiveness were investigated. The substitution of Er resulted in an enhancement in lattice constant, saturation magnetization, and coercivity. 3d-4f coupling was promoted due to the insertion of Er, leading to variation in magnetic, dielectric, and conduction mechanisms. The shielding effectiveness was significantly improved, with absorption playing a more important role than reflection. The obtained results indicate that LE6FO/CB is a promising candidate for EMI shielding applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Physics, Applied
Asha A. Gaikwad, S. B. Kulkarni
Summary: NiCuZn ferrite nanoparticles with Mn substitution were synthesized using the sol-gel auto-combustion technique, and their structural and electrical characteristics were analyzed. The results showed that Mn substitution can enhance the magnetic and dielectric properties of the material.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2021)
Article
Materials Science, Multidisciplinary
Ye Zhao, Huan Li, Ping Wang, Shijun Dong, Qiong Wu, Qiangyuan Zhang, Hui Zheng
Summary: This study investigates the doping of Bi3+-Cr3+ ions into NiCuZn ferrite to enhance its electromagnetic features. The research examines the effects of different Cr3+ concentrations on the electric and magnetic properties, as well as the crystal structure of NiCuZn ferrites. The results show that the inclusion of Cr3+ can decrease the lattice parameter and reduce the saturation magnetization. The addition of Cr3+ ions can also enhance permittivity and reduce dielectric loss. NiCuZn ferrite co-doped with 0.30 wt% Bi2O3 and x = 0.15 of Cr3+ ions exhibits suitable magnetic properties and high cut-off frequency, making it suitable for high-frequency chip inductors.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Marcin Kacki, Marek S. Rylko, John G. Hayes, Charles R. Sullivan
Summary: This article presents a comprehensive investigation of the high-frequency magnetic flux distributions in manganese-zinc ferrite ring cores. New experimental characteristics are presented and used in the flux modeling. The models are used to investigate the high-frequency effects. A complete experimental validation is presented. The presented analytical methods show a very good correlation with the measurements.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Marcin Kacki, Marek S. Rylko, John G. Hayes, Charles R. Sullivan
Summary: Manganese-zinc ferrites are preferred for high-frequency and high-power magnetic components. However, manufacturers' material specifications lack sufficient information for design optimization. This article proposes a method to determine the properties of Mn-Zn ferrite and provides experimental frequency characteristics for four ferrite materials. The impacts of physical size, temperature, and force on ferrite properties are also considered.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Yan Yang, Jie Li, Huaiwu Zhang, Jun Li, Fang Xu, Gang Wang, Feng Gao, Haokai Su
Summary: In this study, Ni0.29Cu0.18Zn0.53NbxFe2-xO4 (x = 0.00-0.05) ferrites with high saturation magnetization, appropriate initial permeability, high cut-off frequency and low ferromagnetic resonance linewidth were synthesized by low-temperature firing. The results showed that Nb5+ ion substitution played a significant role in producing compact and uniform microstructures, enhancing the magnetic and gyromagnetic properties. The enhanced properties include high initial permeability, saturation magnetization and low ferromagnetic resonance linewidth.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Peng Wang
Summary: The compounding of Fe3BO5 with FeNi alloy particles significantly adjusts the electromagnetic parameters, optimizes impedance matching, and improves microwave absorption performance. When the thickness is 1.5 mm, the absorption bandwidth (RL <= -10 dB) ranges from 12 GHz to 18 GHz with a width of 6.0 GHz, and the RL peak reaches -37.57 dB at 15.45 GHz, indicating that Fe3BO5 is effective in improving the microwave absorption performance of soft magnetic alloy particles.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Kanagesan Samikannu, Ahmad Fahad Ahmad, Ismayadi Ismail, Zarina Aspanut, Wan Haliza Abd Majid
Summary: CuFe2O4 nanoparticles were successfully synthesized by sol-gel combustion technique, and their properties were analyzed. The complex permittivity and complex permeability of the Cu-ferrites were measured at different frequencies. The results showed that the dielectric and magnetic properties increased with thickness, but remained almost constant with frequency. The spinel CuFe2O4 nanoparticles had an average size of about 30 nm and showed potential for applications in suppressing electromagnetic interference.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yusuf Sani, Raba 'ah Syahidah Azis, Ismayadi Ismail, Yazid Yaakob, Muhammad Khalis Abdul Karim, J. Mohammed, Bello Murtala Alhaji
Summary: This paper reports the development of ultra-wide bandwidth microwaves using thin-thickness absorbers with enhanced microwave absorption. A strategic approach was highlighted to obtain the ultrawide, thin, and high impedance matching of the absorber. The effectiveness of different nanocomposite absorbers were measured and credited with effective ultra-wide bandwidth microwave absorption. This report is important for paving future work in obtaining a desired thin and ultra-wide bandwidth absorber.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Materials Science, Ceramics
Ying Zhang, Jie Li, Chenqing Liao, Yang Xiao, Bing Lu, Shuai Wang, Yingli Liu, Pengjie Zhang
Summary: According to this study, Co(2)Z ferrite is suitable for applications in high-frequency antennas. The saturation magnetization intensity and coercivity of the samples initially increased and then decreased with an increase in the Dy3+ ion doping concentration. The sample with a Dy3+ ion doping concentration of 0.15 had the best physical properties and magnetic dielectric performance, making it suitable for high-frequency antennas.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yida Lei, Xueying Wang, Xingyu Huo, Kui Liu, Yingli Liu, Pengjie Zhang, Huaiwu Zhang, Jie Li
Summary: The phase formation, microstructure, magnetic properties, and dielectric properties of Ba(1.5)Sr(1.5)Co(2)Fe((23-x))CrxO(41) (0.0 <= x <= 1.0) ceramics with Fe3+ ions substituted by Cr3+ ions were systematically investigated. The results showed that Z-type hexagonal ferrite was formed with successful incorporation of Cr3+ ions into the lattice. The microstructure analysis revealed that Cr3+ doping had a significant effect on crystal micromorphology, with x = 0.4 samples having the most homogeneous micromorphology and highest sintering density. The Cr-doped samples exhibited outstanding magnetic-dielectric properties, with high permeability and low magnetic and dielectric losses for various frequencies. The materials prepared in this study are expected to have extensive applications in ultrahigh-frequency devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Charanjeet Singh, Ebtesam E. Ateia, Sukhleen Bindra Narang, Mohamed Farag, Jasbir Singh, D. E. El-Nashar
Summary: Flexible magnetic nanocomposite materials incorporating cobalt/calcium ferrite nanoparticles in the EPDM rubber matrix were studied for their microwave characteristics, with structural characterization conducted using various techniques. The nanocomposite was found to have low magnetic and dielectric loss, making it suitable for low-loss applications in wireless communication.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)