Article
Chemistry, Physical
Abdulmumeen Lohmaah, Komkrich Chokprasombat, Supree Pinitsoontorn, Chitnarong Sirisathitkul
Summary: The study demonstrates the substitution of copper in barium hexaferrite crystals as a cost-effective way to achieve alterable magnetic properties. Different substitution levels of Cu influence the morphology and magnetic properties of the crystals significantly.
Article
Materials Science, Multidisciplinary
Issa El Heda, Jalel Massoudi, Radhia Dhahri, Essebti Dhahri, Fathi Bahri, L. H. Omari, Jose F. M. L. Mariano
Summary: Spinel nanoparticles M0.5Fe2.5O4 (M = Co, Mg) were synthesized by the auto-combustion method using glycine as a fuel. The structural and morphological properties of these compounds were investigated using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. The optical study showed strong absorption in the visible range and intermediate gap energies (2.91 eV for Co0.5Fe2.5O4, 3.16 eV for Mg0.5Fe2.5O4), making them promising candidates for photovoltaic applications. The electrical analysis revealed a semiconductor-metallic transition at 540 K and the conduction mechanisms were dominated by Correlated Barrier Hopping (CBH) and No Overlap Small Polaron Tunneling (NSPT) models. The dielectric constant analysis indicated potential applications in the electronic systems industry, LTCC devices, and super capacitor applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Maha Mostafa, Oday Saleh, Ahmed Maher Henaish, Samir Ali Abd El-Kaream, Ryad Ghazy, Osama M. Hemeda, Ali M. Dorgham, Hanan Al-Ghamdi, Aljawhara H. Almuqrin, M. I. Sayyed, Sergei V. Trukhanov, Ekaterina L. Trukhanova, Alex V. Trukhanov, Di Zhou, Moustafa A. Darwish
Summary: In this study, Ni1-x+2Mgx+2Fe2+3O4 nano-ferrites with different Mg doping levels were synthesized using the auto combustion flash method, and their structural, thermal stability, and magnetic properties were investigated. The results showed that increasing the Mg content delayed the crystallization process and increased the average grain size. The magnetic parameters decreased with increasing Mg content. Additionally, the electrical resistivity of the samples exhibited a semiconductor trend, and the dielectric constant sharply increased at high temperatures, attributed to the enhanced mobility of charge carriers.
Article
Chemistry, Physical
Reda E. El-Shater, Hassan El Shimy, Samia A. Saafan, Moustafa A. Darwish, Di Zhou, Alex V. Trukhanov, Sergei V. Trukhanov, Fatma Fakhry
Summary: Nanoparticles of Mn ferrite were successfully prepared by co-precipitation method, and the substitution of Mn ions resulted in enhanced magnetic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Hossein Goodarzi, Manoochehr Sobhani
Summary: In this study, Mn0.76Zn0.24Fe2O4 spinel ferrite was fabricated with the addition of CaO. The addition of CaO improved the theoretical density and saturation magnetization of the samples.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Enas A. Arrasheed, Yamen A. Alibwaini, T. M. Meaz, Rizk Mostafa Shalaby, B. Salem, Abdul-Wali Ajlouni, H. H. El-Bahnasawy, O. M. Hemeda, A. M. A. Henaish
Summary: This study investigates the influence of Al substitution in Ni ferrite on the structure and electrical resistivity of NiAlxFe2-xO4 nanoparticles. With increasing Al content, the electrical resistivity of Ni-Al ferrites increases, exhibiting typical semiconductor behavior.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Polymer Science
A. M. A. Henaish, M. M. Ali, D. E. El Refaay, I. A. Weinstein, O. M. Hemeda
Summary: NiFe2O4/PANI nano-composite with different PANI content was synthesized, where XRD confirmed the single phase structure and IR spectra showed characteristic absorption bands. The dielectric constant behavior tends to be polymer-like with higher PANI content, and the Curie temperature decreases with increasing PANI content due to A-B exchange interaction. Saturation magnetization, remanence magnetization, coercivity, area, and squareness were measured using VSM.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Polymer Science
M. Sivaram Prasad, B. B. V. S. Vara Prasad, K. V. Ramesh, B. Rajesh Babu
Summary: Nanocrystalline chromium substituted Ni-Zn nanoferrites were synthesized and characterized for their electrical and magnetic properties through sintering. The results showed changes in structure and properties with chromium substitution, and FT-IR spectra analysis indicated the spinel structure characteristics.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shahzadi Noreen, Abid Hussain
Summary: The nanostructured Cu0.25M0.75Fe2O4 (M = Mn, Mg, Ni, Co) ferrites were synthesized by the sol-gel auto-combustion method, and their structural, magnetic, morphological, and optical properties were investigated. XRD, UV-Vis, VSM, SEM, EDX, and FTIR were employed for characterization. The obtained spinel ferrites were found to be single-phased spinels with no secondary phase peaks. The substitution of M in Cu0.25M0.75Fe2O4 ferrites affected their magnetic properties, resulting in a transition from ferrimagnetic to ferromagnetic behavior. The UV-Vis analysis showed that the ferrites had a direct band gap.
Article
Chemistry, Multidisciplinary
Parvin Imanipour, Saeed Hasani, Amir Seifoddini, Marcin Nabialek
Summary: In this study, cobalt ferrite magnetic nanoparticles doped with zinc and vanadium were synthesized using the sol-gel auto-combustion method. The samples were characterized using various techniques, and the results showed that doping affected the crystal structure, grain size, and morphology of the synthesized particles, as well as the saturation magnetization and coercivity. These findings are of great importance for understanding the physical properties and applications of cobalt ferrite.
Article
Materials Science, Ceramics
Seyedeh Mansoureh Hashemi, Zahra Ataollahi, Saeed Hasani, Amir Seifoddini
Summary: The cobalt ferrite magnetic nanoparticles were synthesized using the sol-gel auto-combustion method with different amounts of egg white protein. The addition of albumin reduced the average crystallite size and increased the coercivity and saturation magnetization of the nanoparticles. The presence of albumin caused cation redistribution, affecting magnetic anisotropy and inversion degree.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Iulian Petrila, Florin Tudorache
Summary: This paper investigates the impact of adding Li+ and K+ metal ions on the magnetic and dielectric properties of Mg-Zn ferrite. By controlling the addition of metal ions and selecting sintering temperatures, the performance of ferrite can be optimized. The results show that changes in microstructure directly affect the material's properties.
Article
Materials Science, Ceramics
Xiang Yu, Lichen Wang, Ruoshui Liu, Ningfang Zhou, Zhiyi Xu, Huayang Gong, Tongyun Zhao, Jirong Sun, Fengxia Hu, Baogen Shen
Summary: We synthesized Sr1-xNdxFe12-yCoyO19 (x = 0-0.25, y = 0-0.1) using a conventional ceramic route and analyzed the crystal structures using X-ray diffraction. With increasing Nd3+ and Co2+ contents, lattice constant a increases, while lattice constant c decreases. The magnetic properties are improved when x = y = 0.1 (equal co-substitution), and further improved when x is increased (unequal co-substitution), reaching optimum values of Ms = 76.4 emu/g and Hc = 5115 Oe due to the occupation of the 2a site by divalent Fe2+. The occupancies of Co2+ and Fe2+ are further verified using Raman spectroscopy.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
A. S. Kakde, R. M. Belekar, G. C. Wakde, M. A. Borikar, K. G. Rewatkar, B. A. Shingade
Summary: The influence of Zn substitution on the magnetic properties of Ni-Zn ferrite nano materials was investigated, leading to superparamagnetic behavior and weaker magnetic interactions in the nano ferrite.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
D. H. Manh, T. D. Thanh, T. L. Phan, D. S. Yang
Summary: We fabricated CoFe2O4 nanoparticles with varying crystallite size using coprecipitation and mechanical milling methods. X-ray diffraction and Raman scattering studies confirmed the spinel structure of the samples. The lattice constant and residual strain increased with increasing milling time, leading to changes in the magnetic properties. Analysis of magnetization data revealed changes in coercivity and saturation magnetization. X-ray absorption data indicated a mixed valence state of Fe-2+,Fe-3+, and Co2+ ions, suggesting the migration and redistribution of these cations and lattice distortions impacted the magnetic properties of the nanoparticles.
Article
Chemistry, Inorganic & Nuclear
Jamaan S. Ajarem, Saleh N. Maodaa, Ahmed A. Allam, Mohamed M. Taher, Mohamed Khalaf
Summary: The eco-friendly synthesis of Cobalt oxide nanoparticles using red algae extract showed potential applications in cytotoxicity, antioxidant, anticoagulant, antibacterial, and anti-cancer properties. The nanoparticles exhibited uniform spherical morphology with significant antibacterial effects and antioxidant capacity. Additionally, they demonstrated effectiveness against cancer cells and had anticoagulant activities in blood samples, making them promising for medicinal use.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
M. Afifi, M. K. Ahmed, Hala A. Ibrahium, Nasser S. Awwad, Ali A. Shati, E. Abdel-Fattah
Summary: Hydroxyapatite doped with different concentrations of vanadate ions was synthesized using the co-precipitation method. The structural properties were investigated using XRD, while the morphological features were studied using FESEM. Additionally, the mechanical properties were measured using the ultrasonic technique. The results showed that the addition of vanadate ions led to a decrease in crystallite size, an increase in lattice distortion, and an enlargement of grain size. The hardness and cell viability of the material exhibited a certain concentration dependence.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
M. Afifi, M. K. Ahmed, Hala A. Ibrahium, Nasser S. Awwad, E. Abdel-Fattah, Mohammad Y. Alshahrani
Summary: This study investigated nanocomposites based on hydroxyapatite (HAP), which showed improved human osteoblast viability and excellent antibacterial activity when combined with CuO and GO. The results suggest that the biomaterials have great biocompatibility for biomedical applications.
CERAMICS INTERNATIONAL
(2022)
Article
Pharmacology & Pharmacy
M. A. El-Morsy, M. Afifi, M. K. Ahmed, Nasser S. Awwad, Hala A. Ibrahium, Mohammed S. Alqahtani
Summary: In this study, scaffold compositions were manipulated to enhance wound healing by accelerating the curing process and inhibiting bacterial growth. Powder and fibrous phases of Pd/V-HAP were prepared with different Pd(II) ion contents. The structural and morphological characteristics of the compositions were examined using XRD and FESEM techniques. The highest palladium composition showed a clear porous structure in the powder phase and a significant reduction in fiber filament diameter in the fibrous phase. The 0.8Pd/V-HAP@PCL scaffold exhibited the narrowest contact angle and the highest cell viability. Furthermore, the 0.8Pd/V-HAP@PCL nano fibrous composite demonstrated the maximum inhibition zones against E. coli and S. aureus microorganisms. The cellular growth of fibroblasts cell line increased with the change of nanofiber compositions, indicating the potential of these biomaterials for wound care applications.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Mehrez E. El-Naggar, Ola A. Abu Ali, Dalia Saleh, M. A. Abu-Saied, M. K. Ahmed, E. Abdel-Fattah, S. F. Mansour
Summary: Nanocomposites based on hydroxyapatite, including MoO3, HAP/MoO3, HAP/GO, and HAP/MoO3/GO, were studied for biological applications. Different compositions were analyzed using various techniques, revealing that the HAP/MoO3/GO composite exhibited the highest cell viability and best antibacterial performance.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Polymer Science
Asma A. Alothman, Mehrez E. El-Naggar, M. Afifi, Mohammed Sheikh Saleh Mushab, Mika Sillanpaa, El-Refaie Kenawy
Summary: Nanocomposites based on hydroxyapatite were successfully fabricated and investigated using various techniques. The surface morphology and chemical compositions of the nanocomposites were analyzed and showed significant changes. The nanocomposites exhibited improved cell viability and antibacterial behavior.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Polymer Science
Mehrez E. El-Naggar, Ola A. Abu Ali, M. A. Abu-Saied, M. K. Ahmed, E. Abdel-Fattah, Dalia Saleh
Summary: Nanocomposites consisting of HAP, CdSe, and GO were studied for their morphology, structure, and chemical composition. The ternary nanocomposite showed enhanced corrosion resistance, antibacterial activity, and good cell viability towards osteoblasts. The release of Cd2+ and Ca2+ ions increased with exposure time, reaching certain concentrations.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Analytical
Mehrez E. El-Naggar, Ola A. Abu Ali, Dalia I. Saleh, M. A. Abu-Saied, M. K. Ahmed, E. Abdel-Fattah, S. F. Mansour
Summary: This study investigated the effect of different magnesium ion contents incorporated into hydroxyapatite (HAP) and modified with selenite ions on the degradation performance of methylene blue. The results showed that even at a low ratio, magnesium ions induced changes in the microstructure, morphology, surface area, external surface charge, particle size, and degradation performance of HAP.
Article
Chemistry, Analytical
Mehrez E. El-Naggar, Ola A. Abu Ali, Dalia Saleh, M. A. Abu-Saied, M. K. Ahmed, E. Abdel-Fattah, S. F. Mansour
Summary: By combining hydroxyapatite (HAP), graphene oxide, and vivianite in a ternary nanocomposite with three phases and shapes, the cell viability of osteoblast cells was increased to 97.6% +/- 4 in vitro. The nanocomposite showed decreased crystal size, increased roughness peak height, and exhibited antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), making it suitable for various medical applications.
Correction
Chemistry, Multidisciplinary
Sherif Ashraf, M. K. Ahmed, Hala A. Ibrahium, Nasser S. Awwad, E. Abdel-Fattah, M. G. Ghoniem
Summary: Correction for the study on nanofibers of polycaprolactone containing hydroxyapatite doped with aluminum/vanadate ions for wound healing applications, by Sherif Ashraf et al., New J. Chem., 2021, DOI: 10.1039/d1nj03455c.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Polymer Science
M. K. Ahmed, Nasser S. Awwad, Hala A. Ibrahium, Mervet S. Mostafa, Mohammed S. Alqahtani, M. A. El-Morsy
Summary: A novel nanocomposite material HAP/Er2O3/GO was synthesized and shown to have uniform distribution of HAP and Er203 within the GO sheet. The composite exhibited enhanced surface roughness and hardness parameters, as well as antibacterial properties and cell viability, indicating good biocompatibility and bioactivity. Therefore, HAP/Er2O3/GO shows promise as a bone implant material for bone replacement applications.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Polymer Science
M. K. Ahmed, Nasser S. Awwad, Hala A. Ibrahium, M. Afifi
Summary: Post-implantation infections are a major concern in the biomedical field. This study investigates the development of antibacterial biocompatible materials by introducing hydroxyapatite, erbium oxide, and graphene oxide in nanocomposite combinations. The synthesized nanoparticles and nanosheets of these materials were dispersed in the nanocomposites, resulting in rod-like and ellipsoidal shapes. The ternary nanocomposite showed increased antibacterial activity and cell viability, indicating its potential for biomedical applications.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Nasser S. Awwad, Emad M. Eed, Ahmad El Askary, Hala A. Ibrahium, Moustapha E. Moustapha, M. K. Ahmed
Summary: Developing bioceramics-based nanomaterials for scaffolding is still a challenge. In this study, a nanocomposite combining hydroxyapatite, hematite, and graphene oxide is fabricated to achieve antibacterial properties and improved mechanical properties. The nanocomposite exhibits enhanced surface roughness, increased microhardness, and enhanced antibacterial properties against Escherichia coli and Staphylococcus aureus.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Correction
Chemistry, Multidisciplinary
Mohamed K. Ahmed, Ahmed Esmail Shalan, Mohamed Afifi, Mohamed M. El-Desoky, Senentxu Lanceros-Mendez
Article
Multidisciplinary Sciences
Hyam A. Radwan, Rabab A. Ismail, Said A. Abdelaal, Badreah A. Al Jahdaly, Albandary Almahri, M. K. Ahmed, Kamel Shoueir
Summary: The study involved doping magnetite nanoparticles with copper through a mat of graphene oxide nanosheets to create nanofibrous membranes, which demonstrated good mechanical properties, high dye removal efficiency, and certain antibacterial effectiveness.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
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)
