Article
Chemistry, Physical
Rong Ji, Min Yang, Jingqing Lv, Zihan Wang, Yi Shi, Xiaoli Song, An Xie, Junliang Liu, Ming Zhang
Summary: Surface carboxylation of barium hexaferrite (BaM) provides activated points for the preferential growth of polyaniline (PANI) on BaM particles, leading to tuned morphology and improved complex permittivity. The convex rods and dendrite-like morphology of PANI activate electron transport, enhance interfacial polarization, and result in excellent microwave absorption due to enhanced electromagnetic wave dissipation and combination of losses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
M. A. Darwish, V. A. Turchenko, A. T. Morchenko, V. G. Kostishyn, A. V. Timofeev, M. I. Sayyed, Zhipeng Sun, S. V. Podgornaya, E. L. Trukhanova, E. Yu. Kaniukov, S. V. Trukhanov, A. V. Trukhanov
Summary: The study demonstrates that tin-substituted hexaferrites can be used for both electromagnetic shielding and absorbing materials, showing potential for absorbing electromagnetic radiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mohammad Rostami, Motahareh Jafarpour, Mohammad Hossein Majles Ara
Summary: The microwave absorption properties of Co-Al-Ti substituted barium hexaferrite-multiwalled carbon nanotubes (MWCNTs)-epoxy resin nanocomposites were thoroughly investigated in the frequency range of 1-18 GHz. The nanocomposites exhibited appropriate microwave absorption properties, high efficiency, light weight, and small thickness, making them promising candidates for microwave absorbers.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
M. A. Darwish, H. F. Abosheiasha, A. T. Morchenko, V. G. Kostishyn, V. A. Turchenko, E. L. Trukhanova, K. A. Astapovich, A. Trukhanov
Summary: The rapid development of information technology and the increase in electronic devices have led to various forms of electronic environmental contamination. Microwave absorption materials are crucial for preventing damage from electromagnetic radiation, with balanced wave impedance being a necessary condition for absorbing most incoming radiation. Controlling grain size and magnetic properties of prepared samples play a key role in enhancing microwave radiation absorption, making the studied samples promising materials for electromagnetic shielding applications.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ibrahim Mohammed, J. Mohammed, A. K. Srivastava
Summary: This study investigates the impact of Dy3+-Cu2+ doping on the structural, magnetic, and electromagnetic properties of Sr1.7Ba0.3Co2-xDyxFe12-xCuxO22 (x = 0.0, 0.1, 0.2) synthesized using sol-gel auto combustion. The results confirm the formation of single-phase Co2-Y-type hexaferrite with increased lattice parameters and decreased grain size. The substituted hexaferrite exhibits improved magnetic properties and shows potential application in the X bands based on its minimum reflection loss and extended bandwidth.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Andrzej Hilczer, Katarzyna Pasinska
Summary: Nanocrystallites of Sr0.95Nd0.05Fe12-xScxO19 (0 <= x <= 1.56) were synthesized by citric sol-gel method, showing continuous increase in lattice parameters with increasing x and a decrease in particle size. Magnetic properties were significantly affected by doping, especially in samples with x >= 0.60. The appearance of conical magnetic order was reflected in temperature dependences of extrinsic magnetic properties, with T-cone shifting downwards with increasing field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Nyathani Maramu, D. Ravinder, T. Anil Babu, M. Srinivas, B. Ravinder Reddy, G. Sriramulu, Katlakuntla Sadhana, N. V. Krishna Prasad
Summary: A series of silver-doped strontium hexaferrite were synthesized by the Co-precipitation method, and their crystal structure, morphology, and microwave absorption properties were studied. The results showed that the lattice parameters increased and grain size decreased with the increase of Ag doping, leading to improved microwave absorption properties in X-band frequencies. The study confirmed the nature of microwave absorption for Ag-doped strontium hexaferrite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Polymer Science
Svetoslav Kolev, Borislava Georgieva, Tatyana Koutzarova, Kiril Krezhov, Chavdar Ghelev, Daniela Kovacheva, Benedicte Vertruyen, Raphael Closset, Lan Maria Tran, Michal Babij, Andrzej J. Zaleski
Summary: The study investigated the microwave properties of polycrystalline Y-type hexaferrite used as a filler in a composite microwave-absorbing material, and found that the external magnetic field significantly affects the absorption performance by adjusting the attenuation peak frequency.
Article
Chemistry, Physical
Muhammad Zarrar Khan, Iftikhar Hussain Gul
Summary: Our research provides a systematic study of the electrical, magnetic and microwave absorption properties of La-Co substituted Ba-Sr hexaferrite nanoparticles and MWCNTs encapsulated in a conductive polymer matrix. The synthesized samples showed good energy dissipation behavior and microwave absorption performance, highlighting their potential for reducing electromagnetic signatures in commercial and military applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
M. A. Almessiere, Y. Slimani, N. A. Algarou, M. A. Gondal, Y. S. Wudil, M. Younas, I. A. Auwal, A. Baykal, A. Manikandan, T. Zubar, V. G. Kostishin, A. Trukhanov, I Ercan
Summary: The study prepared hard/soft nanocomposites using a sol-gel auto-combustion technique, showing complete exchange-coupled effects between phases and excellent electrodynamic parameters.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Yu Lei, Wenfeng F. Wang, Guoguo Tan, Xiaoyun Shang, Xiangyun Huang, Qikui K. Man
Summary: Rare earth dysprosium-doped Z-type hexaferrite with uniform particle size and hexagonal flake shape were synthesized by the sol-gel method. The samples exhibit excellent soft magnetic properties, with saturation magnetization increasing gradually with the amount of Dy doping. Trace doping of dysprosium significantly improves the microwave absorption properties of Z-type hexaferrite, with a sample doped at x = 0.05 showing an exceptional reflection loss value of -52.6dB at 5.25 GHz and a maximum effective absorption bandwidth of 6.6 GHz, covering both C-band and X-band. Excessive doping leads to impurity phase generation and reduction in magnetic properties and microwave absorption, highlighting the importance of appropriate Dy3+ doping for enhancing the microwave absorption property of Z-type hexaferrite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
M. A. Darwish, A. T. Morchenko, H. F. Abosheiasha, V. G. Kostishyn, V. A. Turchenko, M. A. Almessiere, Y. Slimani, A. Baykal, A. Trukhanov
Summary: This paper introduces a novel RAM using exfoliated graphite and hexaferrite, studying its application in composite materials. Characterization and analysis of prepared samples were conducted using XRD, Raman spectroscopy, SEM, and VSM, demonstrating the efficient electromagnetic radiation absorption capabilities of this RAM.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Sungjoon Choi, Jae-Hyoung You, Chris Yeajoon Bon, Seung-young Park, Sang-Im Yoo
Summary: Enhanced microwave absorption properties were achieved in SrFe2-xZnxF hexaferrite filler-epoxy resin matrix composites. Partially Zn-substituted composites showed the best performance in the 3.4-3.8 GHz and 5.9-7.1 GHz ranges.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Sagar E. Shirsath, R. H. Kadam, K. M. Batoo, Danyang Wang, Sean Li
Summary: In this study, the magnetic properties of Sr0.8Ca0.2AlxCoxFe12-2xO19 hexagonal ferrites were improved through Co2+-Al3+ substitution. These ferrites show great potential as rare earth-free magnets with improved saturation magnetization, coercivity, and microwave absorption characteristics. This research highlights the possibility of using hexagonal ferrites as alternatives to rare earth-based permanent magnets.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Nurshahiera Rosdi, Raba'ah Syahidah Azis, Ismayadi Ismail, Nurhidayaty Mokhtar, Muhammad Misbah Muhammad Zulkimi, Muhammad Syazwan Mustaffa
Summary: The study demonstrates that the hybrid of spiraled multiwalled carbon nanotubes and barium hexaferrite nanoparticles exhibits excellent microwave absorption properties, making it a promising microwave absorber for applications in X and Ku bands.
SCIENTIFIC REPORTS
(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)