Article
Chemistry, Physical
Majid Niaz Akhtar, Zainab Mufarreh Elqahtani, Sabih Qamar, Abdullah Almohammedi, M. Irfan, Muhammad Azhar Khan, Muhammad Yousaf, Atif Nazir, Yuzheng Lu, Mustafa Z. Mahmoud, Muhammad Aslam, Z. A. Alrowaili, M. S. Al-Buriahi
Summary: The absorption characteristics of Co, Cu, and Zn-doped Ni-Ce nano ferrites were investigated and it was found that the Zn-doped NiCe absorber showed excellent performance for Ku band absorption applications, making it suitable for next-generation multifunctional absorbers.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Farzana Majid, Javeria Rauf, Sadia Ata, Ismat Bibi, Abdul Malik, Sobhy M. Ibrahim, Adnan Ali, Munawar Iqbal
Summary: This study compared the magnetic, structural and dielectric characteristics of NiFe2O4 prepared using hydrothermal and sol-gel routes. The results showed that the synthesis route affected the structural, magnetic and dielectric properties of NiFe2O4.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
O. Rosales-Gonzalez, A. M. Bolarin-Miro, C. A. Cortes-Escobedo, F. Pedro-Garcia, J. A. Patino-Pineda, F. Sanchez-De Jesus
Summary: This study presents a simple method for synthesizing magnetically removable visible-light photocatalysts based on nickel-doped zinc ferrites. Ferrite semiconductor ceramics were prepared by high-energy ball milling and annealing, and their crystal structures and properties were analyzed. The doped samples showed increased photocatalytic efficiency and ferromagnetism, enabling magnetic recovery and reuse. Photocatalytic tests confirmed the high efficiency and ease of removal of the prepared materials.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Gadudhula Ganesh, Andem Sandeep, Gugulothu Chanti, Rapaka S. C. Bose, Maringanti Sravan Kumar, K. N. Prasanna Kumari, Thangalapally Shekharam, Y. Vasudeva Reddy, Jyotirmayee Satapathy, Dharavath Rajeshwari, Pavan Kumar Naini
Summary: Spinel ferrites with the compositional formula Ni0.8Zn0.2Fe2-xDyxO4 (x = 0, 0.004, 0.008, 0.012, 0.016) were prepared using the sol-gel method. The X-ray diffraction measurements confirmed the cubic spinel structure of the samples. Morphological analysis revealed spherical shaped particles. Thermogravimetric analysis showed the temperature changes and energy dispersive X-ray spectroscopy confirmed the elemental composition. Fourier-transform infrared spectroscopy revealed the various bonds present in the compounds. The UV-vis absorption spectrum indicated energy gap values, which decreased slightly with increased Dy concentration. Raman spectroscopy studied the crystal distortion and phases, and magnetic measurements observed the effect of Dy doping on magnetic properties.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
Shivam Gupta, Chia-Yen Wei, Nyan-Hwa Tai
Summary: This study synthesized composition tunable MnXFe3_XO4 nanoparticles through manganese doping and investigated their physical properties and microwave absorption ability. At the optimized manganese content, the composite mat exhibited low reflectance and transmission losses, achieving efficient microwave absorption and improving the read count between the RFID tag and metal surface, showing potential application prospects.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Sarwar Hasan, Bruska Azhdar
Summary: Nanoparticles of Ni0.5Zn0.5Fe2O4 were synthesized using the sol-gel auto-combustion process, and their physical properties were examined in relation to annealing temperature, solution pH, and annealing duration. XRD analysis confirmed the nanoscale dimension of the nanoparticles, with an average crystallite size ranging from 16 to 41 nm. The samples' characteristics were significantly affected by the annealing temperatures, annealing times, and pH values. Increasing annealing temperatures resulted in an increase in crystallite size, particle size, saturation magnetization, dielectric constant, and dielectric loss tangent, while specific surface area, residual magnetism, coercivity, and band gap energy decreased. The solution pH and annealing time also influenced crystal structure parameters, particle size, band gap values, and magnetic and dielectric parameters.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
M. M. Hoque, M. T. Islam, M. R. Islam, M. A. Zubair
Summary: This study investigates the effects of low-level Ba-Cr co-incorporation on the structural and functional properties of sol-gel synthesized BiFeO3 nanoparticles. The results show that Ba substitution enhances structural stability, reduces optical bandgap, and increases saturation magnetization. These findings open up potential opportunities for photo-chemical/electric and magnetic applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Navneet Kaur, Raminder Kaur, Satyendra Singh
Summary: Zirconium ferrite (ZrFe2O4) nanoparticles with different sizes were synthesized and characterized. The crystal structure and average crystallite size were found to change with calcination temperature. The nanoparticles exhibited a spherical shape and homogeneous distribution. The smaller nanoparticles showed higher photocatalytic activity for the degradation of hazardous dyes, and the degradation rate increased with the decrease in particle size.
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
Physics, Applied
Pierfrancesco Maltoni, Tapati Sarkar, Gaspare Varvaro, Gianni Barucca, Sergey A. Ivanov, Davide Peddis, Roland Mathieu
Summary: The sol-gel synthesis was used to efficiently obtain nanocrystallites of SrFe12O19 (SFO) hexaferrite, allowing control over nanoparticle size and maintaining magnetic performance at lower annealing temperatures. The study shows the potential of this method in designing hard/soft exchange-coupled bi-magnetic nanocomposites.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
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
Materials Science, Multidisciplinary
Mandeep Kaur, Pawandeep Kaur, Shalini Bahel
Summary: Magnetic, elastic, electromagnetic, and microwave absorption properties of cobalt-substituted zinc spinel ferrites Zn1-xCoxFe2O4 (0.00 <= x <= 1.00, Delta x = 0.25) fabricated via the sol-gel citrate route are analyzed. The hysteresis loops of constituent ferrites revealed the rapid rise in saturation magnetization and coercivity with the doping of cobalt ions. Complex permittivity (epsilon(r)) and complex permeability (mu(r)) are analyzed using a vector network analyzer in Ka-band. The absorption is maximized by tuning the thickness of the sample from 0.8 mm to 3.5 mm using the quarter wavelength model. Maximum absorption of 99.14% at a matching frequency of 34.60 GHz and a matching thickness of 1 mm is obtained by the composition with x = 0.75. The prepared ferrite composition proves to be an efficient microwave-absorbing material at high frequencies ranging from 26.5 to 40 GHz.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Ceramics
Yong-he Liu, Shun-kang Pan, Li-chun Cheng, Hua-yuan Yao, Yu-hang Zhai, Yu-cheng Chen
Summary: Manganese-based rare-earth perovskite oxides with excellent dielectric loss and effective magnetic loss have been designed and fabricated using a sol-gel combustion method. Barium doping played a significant role in adjusting the electromagnetic properties, leading to improvements in the material's microwave absorption ability. The Pr0.98Ba0.02MnO3 sample showed the best electromagnetic wave absorption performance, with promising potential as a microwave absorber.
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
Luis Eduardo Caldeira, Camila Stockey Erhardt, Fabricio Ravanello Mariosi, Janio Venturini, Rubia Young Sun Zampiva, Oscar Rubem Klegues Montedo, Sabrina Arcaro, Carlos Perez Bergmann, Saulo Roca Braganca
Summary: Several studies have demonstrated the exceptional responses of spinel cobalt ferrites as advanced ceramics, but there is still a gap in the literature regarding the impact of synthesis parameters on product properties. This research aims to correlate temperature and annealing time with structural, optical, and magnetic properties of CoFe2O4. The results indicate that treatments longer than 6 hours at temperatures higher than 650 degrees Celsius can lead to fewer inverted nanoparticles and larger crystallites, while the sample annealed for the shortest time and at the lowest temperature exhibited the highest coercivity.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Neha Aggarwal, Sukhleen Bindra Narang
JOURNAL OF ELECTRONIC MATERIALS
(2020)
Article
Physics, Applied
Samiksha Verma, Santhoshkumar Mahadevan, Chhavi Pahwa, Anoop Pratap Singh, Sukhleen Bindra Narang, Neha Aggarwal, Puneet Sharma
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2020)
Article
Chemistry, Physical
Neha Aggarwal, Sukhleen Bindra Narang
Summary: The study shows that substitution of cobalt and zirconium in nickel-zinc spinel ferrites affects the structure and performance of the materials, with substituted samples exhibiting high dielectric and magnetic losses, and showing excellent microwave absorption performance in the X band at specific thicknesses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Neha Aggarwal, Teglovy Singh Chohan, Karamveer Singh, Rajan Vohra, Shalini Bahel
2016 INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONICS, AND OPTIMIZATION TECHNIQUES (ICEEOT)
(2016)
Proceedings Paper
Computer Science, Theory & Methods
Neha Aggarwal, Shalini Bahel, Teglovy Singh, Rajan Vohra
PROCEEDINGS OF THE 10TH INDIACOM - 2016 3RD INTERNATIONAL CONFERENCE ON COMPUTING FOR SUSTAINABLE GLOBAL DEVELOPMENT
(2016)
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)
