Article
Engineering, Electrical & Electronic
Behrouz Shahbahrami, Sayed Mahmood Rabiee, Reza Shidpoor, Hamed Salimi-Kenari
Summary: Zinc-substituted cobalt ferrite nanoparticles were synthesized and studied for their crystal structure, morphology, and magnetic properties. The addition of zinc affected the strain in the structures, resulting in changes in particle morphology and magnetic behavior.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chuannan Ge, Chenglong Lei, Bo Wang, Yakun Wang, Zhouhao Peng, Zhitong Wang, Yunjun Guo
Summary: Nanosized spinel ferrites MFe2O4 (M = Mn, Co, Ni, Cu, Zn)-coated flaky FeSiAl alloy composites were successfully synthesized. The nanoferrites preferred to grow into nanoplatelets due to induced or restricted growth on the flaky surface of FeSiAl. The annealing temperature affected the nanosized morphology, coating, and magnetic properties of the composites.
Article
Acoustics
Yuandong Peng, Chao Xia, Minghui Cui, Zhixin Yao, Xuwu Yi
Summary: Ni0.4Cu0.2Zn0.4Fe2O4 ferrites nanoparticles were successfully synthesized via co-precipitation assisted with ultrasonic irradiation. The effects of ultrasonic power and reaction temperature on the microstructure and magnetic properties were investigated, with higher saturation magnetization and coercivity observed at lower reaction temperature. The outcomes demonstrate that ultrasonic irradiation has positive effects on improving the microstructure and magnetic properties of the ferrite nanoparticles.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
R. Sagayaraj, S. Sebastian
Summary: Z-type hexaferrites with polycrystalline characteristics were synthesized using co-precipitation method. The XRD results confirmed the polycrystalline phase and 6 nm particle size of the Z-type ferrite nanoparticles. The FTIR spectrum showed resonances corresponding to tetrahedral and octahedral voids and a stabilized ferrite structure. These special ferrite materials exhibited ferrimagnetic properties and high coercivity, making them useful for microwave absorption, high-frequency applications, and magnetic recording media.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Deepali D. Andhare, Supriya R. Patade, Swapnil A. Jadhav, Sandeep B. Somvanshi, K. M. Jadhav
Summary: The synthesis and properties of Zn2+-substituted cobalt ferrites were investigated, including changes in physical and chemical properties, structural features, and magnetic behavior. Analysis using various techniques revealed the impact of Zn2+ doping on the characteristics of the cobalt ferrite material.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Waranont Anukool, Rami Ahmad El-Nabulsi, Shadab Dabagh, Munirah Almessiere, Muhammad Gul Bahar Ashiq, Sadik Guner, Abdulhadi Baykal
Summary: The study successfully synthesized Al-substituted cobalt ferrite nanoparticles, with X-ray diffraction confirming its single-phase cubic spinel structure, FT-IR spectra showing two main absorption bands, and FE-SEM images revealing nearly spherical structure.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Deepali D. Andhare, Supriya R. Patade, Mangesh V. Khedkar, Asha A. Nawpute, K. M. Jadhav
Summary: This article investigates the structural, morphological, magnetic, and hyperthermia properties of uncoated and polyethylene glycol (PEG) coated zinc substituted cobalt ferrite nanoparticles. The study concludes that the PEG-coated nanoparticles exhibit enhanced properties compared to uncoated nanoparticles and show promise as a material for magnetic hyperthermia applications in cancer treatment.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Behrouz Shahbahrami, Sayed Mahmood Rabiee, Reza Shidpour, Hamed Salimi-Kenari
Summary: In this study, zinc cobalt ferrite nanoparticles were synthesized using the co-precipitation method, and the effect of processing parameters on the microstructure, magnetic properties and hyperthermia performance of the nanoparticles was investigated. The results showed that increasing the calcination time and temperature led to an increase in particle size and magnetic properties. The nanoparticles synthesized at 550 degrees C for 2 hours exhibited the highest heating efficiency in hyperthermia. The concentration of nanoparticles in the ferrofluids also had a significant impact on the heat generation, with the highest specific loss power values observed for ferrofluids containing 5 mg/ml of nanoparticles synthesized at 550 degrees C for 2 hours.
JOURNAL OF ELECTROCERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Maryam Dinarvand, Mahdieh Abolhasani, Faramarz Hormozi, Zohreh Bahrami
Summary: This paper experimentally studies and compares the viscosity of two ferrofluids containing water-based bimetallic spinel ferrite nanoparticles (MFe2O4, M = Fe, Co) in the presence and absence of a magnetic field. The study investigates the effect of nanoparticle volume fraction and temperature on the viscosity of the ferrofluids. The results show that the type of nanoparticles significantly affects the viscosity in the presence of the magnetic field. Additionally, the viscosity decreases with increasing temperature and increases with increasing nanoparticle volume fraction. New correlations for predicting the viscosity of the ferrofluids are presented based on the obtained results. The thermal performance of the ferrofluids under constant heat flux is also investigated in the presence and absence of a magnetic field, showing that the presence of a magnetic field enhances the thermal performance at Re = 400.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
A. Subha, M. G. Shalini, B. N. Sahu, S. Rout, Subasa C. Sahoo
Summary: Nanocrystalline Cu-ferrite samples were synthesized using co-precipitation method and their structural and magnetic properties were investigated by varying the pH value and annealing temperature. The results showed that the structure and magnetic properties of Cu-ferrite were affected by pH value, annealing temperature, and grain size.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
K. Ajith, Archana Sumohan Pillai, I. V. Muthu Vijayan Enoch, A. Brusly Solomon
Summary: The experimental study measured the thermophysical properties of a novel disk-shaped magnesium ferrite / water-based ferrofluids at different volume fractions and magnetic field conditions, finding that the magnetic field has an impact on the thermal conductivity, viscosity, and density of the ferrofluid.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Soheil Omiddezyani, Samira Gharehkhani, Vahid Yousefi-Asli, Iman Khazaee, Mehdi Ashjaee, Reyhaneh Nayebi, Farzaneh Shemirani, Ehsan Houshfar
Summary: This study presents a straightforward method to synthesize cobalt ferrite/reduced graphene oxide (CoFe2O4/rGO) nanocomposite with high water dispersibility characteristics, utilizing Gallic acid treatment for high stability. The detailed investigation of nanocomposite structure and preparation of highly stable aqueous nanofluids were conducted. Thermal analysis showed significant enhancement in thermal conductivity of ferrofluid and convective heat transfer improvement in laminar flow conditions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Multidisciplinary Sciences
D. Abisha, S. R. Gibin, V. K. Premkumar, A. Mariappan
Summary: The novel co-precipitation technique was used to create manganese ferrite nanoparticles, and the annealed samples at different temperatures were characterized. The optimal annealing temperature was found to be 700 degrees C. The nanoparticles exhibited a spherical shape, with no contamination detected. The particles had a high specific surface area, making them suitable for supercapacitor applications.
Article
Chemistry, Multidisciplinary
Laura Fablet, Fadi Choueikani, Mathieu Pedrot, Margaux Kerdiles, Mathieu Pasturel, Remi Marsac
Summary: Magnetite nanoparticles (MNs) are effective sorbents for inorganic ions and play a crucial role in the treatment of contaminated water. The surface modification of MNs using cobalt impacts their magnetic properties and allows for various high-tech applications. However, the understanding of the interaction between stoichiometric magnetite and transition metals in aqueous solutions remains limited.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Materials Science, Multidisciplinary
Fang Chen, Jie Zhang, Xiaobing Liu, Shengnan Yan, Wangxu Li, Zhaoqiang Yan, Zhenggui Li
Summary: A series of ferrite nanoparticles were synthesized via ion doping and coated with surfactant and dispersed in PFPE-oil to obtain various ferrite ferrofluids. The results showed that ferrite nanoparticles exhibited super-paramagnetic characteristics and the ferrofluids had good dispersion stability. The rheological properties of the ferrite ferrofluids were influenced by ion doping, magnetic field strength, temperature, etc.
FRONTIERS IN MATERIALS
(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)