Article
Chemistry, Inorganic & Nuclear
Shyamal Das, Malina Majhi Das, P. Dhamodharan, C. Manoharan
Summary: CoFe2O4 nanoparticles with an average crystallite size of 35 nm were successfully synthesized, and their physical and chemical properties were characterized. The annealed sample at 800 degrees C showed reduced porosity and increased grain-to-grain contact area, leading to good discharge capacity in the first reverse cycle. The formation of solid electrolyte interphase (SEI) affected the charge flow and lithium ion diffusion during the cycling process.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
BindiyaDey, M. Venkateshwarlu, C. Manoharan, S. AsathBahadur, P. Dhamodharan
Summary: The effects of reaction and annealing temperatures on the structural, magnetic, and electrical properties of hydrothermally synthesized NiFe2O4 nanoparticles with cubic spinel structure were investigated. The results showed that the nanoparticles had a cubic spinel structure with an average crystallite size of 40-60 nm. The analysis techniques, such as FTIR, FESEM, EDAX, BET surface analysis, XPS, VSM, and Mossbauer spectra, confirmed the presence of metal oxide bands, spherical particle nature, purity of nanoparticles, specific surface area, valence states of Ni, Fe, and O elements, soft ferromagnetic behavior, and valence state of iron and its occupancy in A-site and B-site, respectively. Furthermore, the electrochemical analysis exhibited the excellent performance of the NiFe2O4 nanoparticles as a sensor for LPG gas with response and recovery time of 37 and 20 s, respectively.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
BindiyaDey, C. Manoharan, M. Bououdina, M. Venkateshwarlu, A. Murugan
Summary: The cobalt doped nickel ferrite nanoparticles were synthesized via hydrothermal method at low temperature. The particles exhibited a cubic spinel structure with nanosized particles, confirmed by X-ray diffraction and transmission electron microscopy. The nanoparticles showed an increase in energy bandgap with increasing Co content and had enhanced AC conductivity with increasing frequency. The nanoparticles also displayed high saturation magnetization and coercivity, indicating suitability for high-density recording media.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Ceramics
Xiaoqing Chen, Hao Li, Pengcheng Zhang, Gaosheng Li
Summary: Co2P2O7 ceramics were prepared using traditional solid-state sintering technique, with research conducted on their phase composition, grain size distribution, and densification. The influence of pores on permittivity, dielectric loss dependency on porosity, and the low values of ε(r) explained by covalent P-O bonds were explored, along with the relationship between polar phonon modes and dielectric properties using Raman spectroscopy. Optimum dielectric properties were achieved at 1160 degrees C for 4 hours.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Atta Ur Rehman, M. Atif, Ubaid ur Rehman, H. Wahab, Francis Chi -Chung Ling, W. Khalid, A. Ul-Hamid, Z. Ali, M. Nadeem
Summary: Different compositions of doped Ni0.01-xZnxFe2.99O4 (x = 0.0, 0.005, 0.01) nanoparticles were synthesized and characterized. The results showed a significant enhancement in the dielectric and magnetic properties of Ni2+ doped Fe3O4 nanoparticles, attributed to the unusual cation redistribution in the Ni0.01Fe2.99O4 nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Muhammad Azhar Khan, Sohail Afzal, Shagufta Gulbadan, Khalid Mahmood, Ghulam Abbas Ashraf, Majid Niaz Akhtar
Summary: Nano-crystalline Gd-substituted X-type hexaferrites with different Gd concentrations were synthesized and their properties were studied. X-ray diffraction confirmed the single and pure phases of hexagonal ferrites. The dielectric properties showed frequency dependence and suggested potential applications in high-frequency devices and supercapacitors. Raman spectra and SEM images further supported the findings.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Natalia Lomanova
Summary: This study reports the solid-state synthesis features, thermal behavior, dielectric and magnetic properties of single phase ceramic material based on the nine-layered Aurivillius phase, Bi10Fe6Ti3O30. The optimal synthesis conditions, sintering and decomposition temperatures were determined, along with the phase formations and morphology studies. Significant differences in magnetic behavior between the nine-layered phase and other BFTOs Aurivillius phases were observed due to an increase in bismuth orthoferrite content in the perovskite-like block of the compound.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Tatiana Kiseleva, Rashad Abbas, Kirill Martinson, Aleksei Komlev, Evgenia Lazareva, Pavel Tyapkin, Evgeniy Solodov, Vyacheslav Rusakov, Alexander Pyatakov, Alexander Tishin, Nikolai Perov, Enkhnaran Uyanga, Deleg Sangaa, Vadim Popkov
Summary: This paper reports the experimental investigation of submicron Y3Fe5O12 garnet particles obtained by solution combustion synthesis (SCS) and discusses the interdependence of crystal and magnetic structure peculiarities and size's influence on its functional magnetothermal performance.
Article
Chemistry, Physical
F. Issaoui, H. Issaoui, E. Dhahri, Benilde F. O. Costa, Bernardo A. Nogueira, Rui Fausto
Summary: This article presents a detailed study on the structural, spectroscopic, and magnetic properties of La0.57Nd0.10Sr0.18Ag0.15FeO3 (LNSAFO) ferrite nanoparticles prepared using the solid state technique. The nanoparticles have an orthorhombic structure with narrow particle size distribution and high crystallinity, exhibiting a blocking temperature of around 100 K.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
D. Garzon, J. E. Diosa, C. Ostos, F. H. Sanchez, G. A. Munoz Medina, F. Sieves, O. Arnache
Summary: (Fe30Cu70)(96)B-4 (FCB) alloys were prepared by mechanical milling and characterized for structural, morphological, and magnetic properties with increasing milling time. The nanoparticles formed after 12 hours of milling exhibit superparamagnetic-like behavior at temperatures below 60 K despite being ferromagnetic at room temperature. The saturation magnetization and coercive field values change with milling time.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
F. F. H. Aragon, J. A. H. Coaquira, S. W. da Silva, R. Cohen, D. G. Pacheco-Salazar, L. C. C. M. Nagamine
Summary: The study focuses on the magnetic and electrical properties of Fe-doped indium tin oxide (ITO) and confirms the structure and properties of the material through various analysis methods. The results show that the sheet resistance increases with the Fe content, indicating a decrease in the density of conduction electrons as the iron content increases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Gulzar Ahmad Lone, Mohd Ikram
Summary: This study investigates the structural and dielectric properties of pristine and Ni-doped spinel CoFe2O4. The samples were synthesized using a solid-state reaction approach, and the structural analysis confirmed a single-phase FCC cubic spinel structure. The cationic distribution revealed changes in occupancy due to doping. SEM and EDS were used for microstructural and elemental composition analysis. The study found the presence of orientational and interfacial polarization in the samples. The dielectric constant showed a temperature-dependent behavior, with an increase observed after reaching a certain temperature. CoFe1.9Ni0.9O4 exhibited low dielectric loss and strong relaxation behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
T. Rafique, M. Atif, Atta Ur Rehman, H. Wahab, W. Khalid, Z. Ali, M. Nadeem
Summary: Zinc substituted manganese ferrites were synthesized using the citrate sol-gel route, and their structure, stoichiometry, and properties were analyzed. The results showed that zinc substitution led to samples with excellent resistive and dielectric properties, making it suitable for radar absorbing applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
M. Boukhari, Z. Abdelkafi, N. Abdelmoula, H. Khemakhem, N. Randrianantoandro
Summary: The solid-state reaction technique was used to produce polycrystalline Bi1-xBaxFe1-x(Zn1/3Nb2/3)(x)O-3 at different substitutions. The substitution did not affect the rhombohedral structure of BFO but did lead to the formation of a second phase, Bi25FeO39. The substitution also had an impact on the dielectric properties, with an increase in dielectric permittivity and a reduction in dielectric loss.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
N. A. Zhuk, N. A. Sekushin, V. G. Semenov, A. Fedorova, A. A. Selyutin, M. G. Krzhizhanovskaya, V. P. Lutoev, B. A. Makeev, V. V. Kharton, D. N. Sivkov, A. D. Shpynova
Summary: The pyrochlore compound Bi2FeTa2O9.5 was synthesized by solid-phase synthesis. Electron spin resonance (ESR) and Mossbauer spectroscopy were used to investigate the electronic state and local environment of iron atoms. The compound exhibited dielectric properties, and its electrical properties were studied in a wide temperature and frequency range.
JOURNAL OF ALLOYS AND COMPOUNDS
(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)