Article
Energy & Fuels
Munirah Abdullah Almessiere, Yassine Abdelhamid Slimani, Mohammed Hassan, Mohammed Ashraf Gondal, Emre Cevik, Abdulhadi Baykal
Summary: The synthesized CFO-xNFSO nanocrystals exhibit good potential in energy storage applications, showing enhanced capacitance and relatively high energy density in supercapacitor electrodes. The cubic spinel ferrite phase of the NCs is verified by XRD, SEM, and HR-TEM techniques. The magnetic properties of the NCs with different x ratios suggest a good exchange-coupling in the CFO-xNFSO magnetic nanocrystals.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
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
Environmental Sciences
Ashwini S. Varpe, Mrinalini D. Deshpande, Dipak R. Tope, Ashok V. Borhade
Summary: CdFe2O4/Al2O3 magnetic nanocomposite photocatalyst is synthesized by sol-gel auto-combustion method, and its role as a photocatalyst is studied. The influence of Al2O3 concentration on the photocatalytic property is investigated. The 10% composite sample shows superior properties compared to other concentrations and bare CdFe2O4 nanoparticles. The degradation rate of xylenol orange dye reaches 92.29% after 30 minutes of photocatalytic reaction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Ceramics
Junaid Kareem Khan, Muhammad Khalid, Ali Dad Chandio, Kiran Shahzadi, Zaheer Uddin, Ghulam Mustafa, Muhammad Saeed Akhtar, Naimat Ullah Channa, Zaheer Abbas Gilani
Summary: Spinel ferrites are widely studied due to their practical high frequency applications. Nickel spinel ferrites with varying aluminum doping concentrations were prepared and the dielectric properties were investigated.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Vasyl Mykhailovych, Andrii Kanak, Stefana Cojocaru, Elena-Daniela Chitoiu-Arsene, Mircea Nicolae Palamaru, Alexandra-Raluca Iordan, Oleksandra Korovyanko, Andrei Diaconu, Viorela Gabriela Ciobanu, Gabriel Caruntu, Oleh Lushchak, Petro Fochuk, Yuriy Khalavka, Aurelian Rotaru
Summary: In this study, spinel-type MgCr2O4 nanoparticles were synthesized using a sol-gel auto-combustion method with fructose, tartaric acid, and hexamethylenetetramine as chelating/fuel agents. The formation of impurity-free MgCr2O4 nanostructures was optimal at temperatures ranging from 500 to 750 degrees C. Characterization techniques such as FTIR, UV-VIS spectrophotometry, XRD, EDX, and FE-SEM were used to study the properties of the synthesized nanoparticles, revealing the importance of the chelating/fuel agent nature and energy release during auto-combustion on the final properties of MgCr2O4 nanoparticles.
Article
Engineering, Electrical & Electronic
Muniba, Muhammad Khalid, Ali Dad Chandio, Muhammad Saeed Akhtar, Junaid Kareem Khan, Ghulam Mustafa, Naimat Ullah Channa, Zaheer Abbas Gilani, H. M. Noor ul Huda Khan Asghar
Summary: In this study, aluminum substituted Ni-Co ferrite nanoparticles were synthesized by sol-gel auto-combustion method and characterized for structural, crystal size, and dielectric properties. The results showed that the nanoparticles exhibited a face centered cubic structure, decreased lattice constant with increasing aluminum content, and demonstrated high conductivity along with potential dielectric properties. These nanoparticles have potential applications in high storage memory and microwave devices.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Ceramics
L. E. De Leon Prado, D. A. Cortes Hernandez, J. C. Escobedo Bocardo, G. F. Hurtado Lopez
Summary: In this study, magnetic nanoparticles with mixed ferrites were synthesized via the sol-gel method and their physicochemical properties were evaluated under different heat treatment conditions. The obtained nanosized magnetic ferrites showed a single crystalline phase, close to the superparamagnetic regime, and exhibited heating ability under the application of a magnetic field.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ghulam Abbas, Atta Ur Rehman, Waheed Gull, M. Afzaal, Nasir Amin, Lamia Ben Farhat, Mongi Amami, Nicola A. Morley, Maria Akhtar, Muhammad Imran Arshad, Abdul Ghuffar, Abid Mahmood, Muhammad Ibrahim
Summary: In this study, spinel ferrites were prepared through the sol-gel auto-combustion method, and the effects of Cu to Co ratio on their structural and functional properties were investigated. The experimental results revealed variations in several performance parameters with different Co2+ concentrations.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Md Abdullah-Al-Mamun, M. S. Sarker, M. R. Hasan, M. M. Haque, F. A. Khan, M. M. Rahman, M. K. R. Khan
Summary: The study found that the Er content has a significant impact on the crystalline structure and magnetic properties of CoFe2-xErxO4 nanoparticles, optimizing material performance by reducing crystallite size and increasing coercivity.
RESULTS IN PHYSICS
(2021)
Article
Physics, Condensed Matter
Asif Hussain, Muhammad Khalid, Ali Dad Chandio, Muhammad Yasin, Nasir Abbas, M. G. B. Ashiq, Hind Albalawi, Kiran Naz, Muhammad Younas, Beenish Masud
Summary: Neodymium doped Ni-Mn based spinel ferrites nanomaterials were synthesized by sol gel auto-combustion method. The samples were annealed and characterized by XRD, SEM, and FTIR. The electrical and magnetic properties of these materials were also studied.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Ceramics
Aref Omri, E. Dhahri, B. F. O. Costa, M. A. Valente
Summary: A systematic study of the structural, electrical, and dielectric properties of NiFeCoO4 nanoparticles synthesized via sol-gel technique has been presented in this article. The analysis includes X-ray diffraction, Raman spectroscopy, dielectric measurements, and complex impedance analysis. The electrical properties and dielectric parameters show significant dependence on temperature and frequency, with one semicircular arc in complex impedance plots representing grains and grain boundaries contributions.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
M. Satish, H. M. Shashanka, S. Saha, P. N. Anantharamaiah, C. V. Ramana
Summary: This study reports on the enhanced magnetostrictive characteristics of composites derived from hard cobalt ferrite (CFO) and soft nickel ferrite (NFO) materials. The composites were synthesized using a cost-effective and eco-friendly method, and their phase purity, surface morphology, magnetic properties, and magnetostrictive characteristics were evaluated. The composites exhibited better magnetostriction at lower magnetic fields compared to the parent sintered CFO and NFO samples, and their structure-phase-property correlation could provide a roadmap for their potential applications in electromagnetic devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Rezhna Kuekha, Tahseen H. Mubarak, Bruska Azhdar
Summary: The sol-gel auto combustion technique was used to synthesize Ni2+, Mn2+ co-substituted CoFe2O4 spinel ferrite nanoparticles successfully. The effect of calcination temperature on the structural, magnetic and dielectric properties of the synthesized ferrite nanoparticles was studied.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
M. A. Almessiere, Y. Slimani, H. Attia, S. I. M. Sheikh, Ali Sadaqat, M. G. Vakhitov, D. S. Klygach, M. Sertkol, A. Baykal, A. V. Trukhanov
Summary: The study investigated the magnetization properties and exchange coupling of hard/soft nanocomposites by varying the ratios of different elements. The sample with the highest Zn content and the same Ni and Cu contents achieved higher saturation magnetization values at 10 K and 300 K. The waveguide approach was employed to study the electrodynamic properties of the samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Sukhmanbir Kaur, Vishal Kumar Chalotra, Rohit Jasrotia, Venuka Bhasin, Sanjay Suman, Swati Kumari, Sanjay Thakur, Jahangeer Ahmed, Amir Mehtab, Tokeer Ahmad, Ranjit Singh, Sachin Kumar Godara
Summary: In this study, Cr-substituted cobalt nanoferrites were successfully prepared using sol-gel auto-combustion technique, exhibiting high saturation magnetization and coercivity for applications in data recording and EMI shielding. Raman spectroscopy showed crystal straining, and antibacterial testing indicated inhibition against both gram-negative and gram-positive bacteria.
Article
Chemistry, Applied
S. Akhtar, M. A. Almessiere, B. Unal, A. Demir Korkmaz, Y. Slimani, N. Tashkandi, A. Baykal, A. Ul-Hamid, A. Manikandan
Summary: Microspheres of Ni0.5Co0.5GaxFe2-xO4 (x≤1.0) spinel ferrites (NiCoGaFe-MSFs) and carbon spheres were synthesized via a hydrothermal technique. The microstructure of the microspheres was characterized using SEM, TEM, and XRD. The electrical and dielectric properties of NiCoGaFe-MSF were systematically studied at temperatures ranging from 20 to 120 degrees C (293.1 x 103 to 393.1 x 103) and frequencies up to 3.0 MHz. The results showed that the conductivity, dielectric properties, and impedance spectra of NiCoGaFe-MSFs were influenced by the Ga ion substitution ratios. The formation of semicircles in the impedance spectra was temperature-dependent, indicating a relaxation mechanism. The findings provide valuable insights for the design and application of spinel ferrite-based materials.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Physical
Komal Rizwan, Muhammad Bilal, Yassine Slimani, Pau Loke Show, Sami Rtimi, Arpita Roy, Hafiz M. N. Iqbal
Summary: Increasing global concern over hazardous pollutants in water bodies due to their toxicity and threat to the environment has led to the need for new or upgraded remediation methods. Advanced oxidation processes (AOPs) utilizing highly reactive oxidizing radicals like center dot O and center dot OH have shown efficacy in the mineralization of dye pollutants. Sonolysis, a newer AOP that employs ultrasound irradiation for generating oxidizing radicals, has become a robust hybrid AOP for degrading environmental contaminants. This review focuses on the degradation of dyes through ultrasound-based AOPs and discusses different sono-based methods and their efficacy for wastewater treatment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Applied
Y. Slimani, M. A. Almessiere, A. Demir Korkmaz, A. Baykal, M. A. Gondal, H. Gungunes, Sagar E. Shirsath, A. Manikandan
Summary: The impact of Ga3+ and Gd3+ co-substitution on the behavior of Ni-Co nanospinel ferrites was investigated. The structure, composition, and morphology of the products were characterized, and Mossbauer spectra were analyzed. The magnetic properties of the nanospinel ferrites were found to be influenced by the distribution of cations and surface spins.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Applied
Essia Hannachi, Yassine Slimani, Muhammad Nawaz, R. Sivakumar, Zayneb Trabelsi, R. Vignesh, Sultan Akhtar, Munirah A. Almessiere, Abdulhadi Baykal, Ghulam Yasin
Summary: Yttrium (Y) and cerium (Ce) co-doped ZnO nanoparticles were synthesized using a sol-gel auto-combustion method. The doping of Ce and Y affected the crystal structure and size of the ZnO nanoparticles. The optical properties, zeta potential, and photocatalytic activities were significantly altered by the co-doping. Undoped ZnO showed better stability and higher photocatalytic activity for methyl orange degradation compared to Ce-Y doped ZnO nanoparticles.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Multidisciplinary
M. A. Almessiere, S. Guener, Y. Slimani, A. Demir Korkmaz, A. Baykal
Summary: Sr0.8Ni0.2Fe12-2xMoxO19 (x <= 0.35) nanohexaferrites were synthesized using a sol-gel combustion method and their properties were characterized. The Mo-doped samples exhibited soft magnetic behavior, while the undoped samples showed hard magnetic behavior.
Article
Crystallography
Essia Hannachi, M. I. Sayyed, Suhairul Hashim, Karem Mahmoud, Yassine Slimani
Summary: This research aims to study the radiation-protecting characteristics of calcium titanate (CaTiO3) perovskite-based ceramic material. The ceramics were prepared using the solid-state reaction method and treated at different temperatures. XRD and FT-IR analysis revealed a CaTiO3 phase formation with an orthorhombic structure. The size of the crystallites increased with rising temperatures, and the relative density also showed an increase. Monte Carlo simulation was used to assess the impact of temperature on the radiation-protecting characteristics, showing a decrease in gamma-photons average track length and an increase in the linear attenuation coefficient with temperature rise.
Article
Crystallography
Essia Hannachi, Karem G. Mahmoud, Yassine Slimani, M. I. Sayyed, Jack Arayro, Yasser Maghrbi
Summary: A series of barium titanate ceramics were prepared using the solid-state reaction route at various sintering temperatures. The structure of the ceramics was examined using X-ray diffraction and FTIR spectroscopy. Optical bandgap energy was estimated through UV-Vis-reflectance data. The ceramics' ability to attenuate ionizing radiation was evaluated using Monte Carlo simulation, and shielding parameters were assessed.
Article
Materials Science, Multidisciplinary
S. Caliskan, M. A. Almessiere, A. Baykal, A. Demir Korkmaz, H. Gungunes, Z. Alsalem, Y. Slimani, E. Gokce Polat
Summary: Praseodymium ion (Pr3+) substituted Ni0.5Co0.5Fe2O4 nanospinel ferrites were synthesized via sonochemical route and showed a single cubic structure with a crystallite size of 9-11 nm. The morphology analysis revealed spherical particles. The magnetic study indicated an increase in superparamagnetic character with the addition of Pr3+ ions. The magnetic parameters showed dependence on cation distribution. The evaluation of Pr -> CoNi (x <= 0.10) NSFs received a score of 8 out of 10.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
M. Sertkol, Y. Slimani, M. A. Almessiere, A. Baykal, S. Akhtar, E. G. Polat, S. Caliskan
Summary: Mn0.5Zn0.5DyxEuxFe2-2xO4 (x <= 0.1) nanospinel ferrites were synthesized using ultrasonication. The samples exhibited cubic spinel phase without impurities and nanostructure confirmed by XRD, TEM, and SEM. DR spectra revealed energy band gaps between 2.44 and 2.56 eV. The magnetic properties of DyEu -> MnZn (x <= 0.1) NSFs were influenced by Eu3+-Dy3+ ion inclusion, showing superparamagnetic and ferromagnetic behavior.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
E. Hannachi, M. I. Sayyed, Y. Slimani, M. A. Almessiere, A. Baykal, M. Elsafi
Summary: This study synthesized novel BTO/MnZnFeO ceramic composites via cost-effective and environmentally friendly approaches, and evaluated their crystal structure and shielding performance against gamma radiation. The X-ray diffraction results showed no chemical reaction within the MnZnFeO and BTO phases in the bi-phasic ceramic composites. The size of the crystallite decreased with increased MnZnFeO content. The experiments demonstrated the improved attenuation parameters of the BTO/MnZnFeO ceramic composites, including linear attenuation coefficients, half-value layer, average tenth value layer, and radiation absorption ratio. These composites performed well in shielding gamma radiation with photon energy lower than 100 keV.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
B. Unal, M. A. Almessiere, A. Baykal, Y. Slimani, A. Sadaqat, Anwar Ul-Hamid
Summary: This report focuses on the effect of Ga-Gd co-substitution on the structural, conductivity, and dielectric properties of NCZGaGd NSFs. The study extensively evaluates the electrical and dielectric parameters of NCZGaGd NSFs as functions of bias frequency, measurement temperature, and co-substitution ratios. XRD analyses confirm the cubic spinel structures, while TEM and FE-SEM along with EDX investigate the morphology and chemical composition of the products. The results show significant effects of co-substitution on the conduction mechanism and dielectric responses of the ternary NiCuZn NSFs system.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Yassine Slimani, Mouldi Zouaoui, Mohamed Ben Salem, Faten Ben Azzouz
Summary: In this study, the effects of adding PbO on the magnetic and superconducting properties of polycrystalline YBa2Cu3O7-d (Y123) were investigated. The combination of PbO with Y123 preserved the orthorhombic structure and enhanced the critical current density (Jc) under an external magnetic field. Excess conductivity analysis showed that PbO improved the superconducting parameters at 0 K.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
E. Hannachi, M. I. Sayyed, Y. Slimani, K. G. Mahmoud
Summary: This study investigates the radiation shielding properties of calcium zirconate and praseodymium calcium zirconate ceramic samples using Monte Carlo simulations. The results show that the addition of praseodymium improves the linear attenuation coefficient and reduces the half-value thickness, lead-equivalent thickness, and transmission factor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Medicinal
Suriya Rehman, Balasamy Rabindran Jermy, Irfan A. Rather, Jamal S. M. Sabir, Suhailah S. Aljameel, Munirah A. Almessiere, Yassine Slimani, Firdos A. Khan, Abdulhadi Baykal
Summary: This study investigates the synthesis of praseodymium ion-substituted nano-spinel ferrites and their potential applications in cancer treatment and antifungal activities. The results show that the synthesized nanomaterial has a significant effect on cancer cell viability and exhibits antifungal properties. The findings suggest that these nanotherapeutics have promising prospects in the pharmaceutical field.
Article
Chemistry, Physical
M. A. Almessiere, Y. Slimani, A. Baykal, H. Gungunes, S. Caliskan, M. G. Vakhitov, D. S. Klygach, T. I. Zubar, S. V. Trukhanov, A. V. Trukhanov, A. Ul-Hamid
Summary: ScIn-type Sr NHFs were synthesized via the sol-gel combustion method and characterized by various techniques. The study showed that doping can significantly alter the magnetic properties and microwave performance of the materials, which is important for the development of electronic coatings and electromagnetic compatibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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)