Article
Chemistry, Multidisciplinary
Emily Siska, Dean Smith, Ashkan Salamat, Keith V. Lawler, Barbara Lavina, Frederic Poineau, Paul M. Forster
Summary: The synthesis and phase stability of TcN, Tc2N, and a substoichiometric TcNx were demonstrated under high pressure and temperature conditions, with a previously unpredicted structure identified for TcN through crystal structure prediction.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Kemryn Allen-Perry, Weston Straka, Danielle Keith, Shubo Han, Lewis Reynolds, Bhoj Gautam, Daniel E. Autrey
Summary: Two-dimensional materials based on transition metal carbides, such as MXenes, have unique properties and great potential in various applications. This study investigated the magnetic properties of Ti-based MXenes and found that the magnetic properties can be tuned by chemical etching conditions, which is beneficial for designing spintronic devices.
Article
Chemistry, Physical
Shengnan Zhong, Qianqian Yin, Yanyan Diao, Fan Yang, Xiaojiao He, Shuai Liu, Yibo Wang
Summary: Two lanthanide metal organic frameworks (MOFs) Er2[(C9N2O4H11)3(H2O)Br]Br·Cl (1) and Yb2[(C9N2O4H11 )3(H2O)2]Br·Cl2 (2) were synthesized using Brensted acidic ionic liquid as ligand. Single crystal X-ray diffraction revealed different coordination environments of Er3+ and Yb3+ in 1 and 2, respectively. Despite the different chemical environments, both Er3+ and Yb3+ were linked by the ligand via Ln-O coordination bonds to form three-dimensional structures. The magnetic behavior of 2 was studied, showing antiferromagnetic interaction between Yb3+ ions.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Physics, Condensed Matter
Mekonnen Tefera Kebede, Venus Dillu, Sheela Devi, Sunil Chauhan
Summary: In this study, Bi1-xSmxFeO3 nanoparticles were prepared using sol-gel technique, and it was observed that the substitution of Sm led to a structural transformation from rhombohedral to orthorhombic, affecting the ferromagnetic properties.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
Mariam Maisuradze, Min Li, Giuliana Aquilanti, Jasper Plaisier, Marco Giorgetti
Summary: Manganese Hexacyanoferrate (MnHCF) and MnHCF partially substituted with nickel were synthesized using a simple coprecipitation method. The physical and chemical properties were studied using various analysis techniques. The addition of nickel resulted in increased vacancies and water content inside the sample, as well as a change in the crystal structure.
Article
Materials Science, Multidisciplinary
Govindhasamy Murugadoss, Manavalan Rajesh Kumar, Parasuraman Kuppusami
Summary: Cu2O-Cu(OH)(2) nanocomposite was successfully synthesized via a chemical precipitation method, showing promising visible-light photocatalytic activity for crystal violet degradation. The nanocomposite combines the advantages of Cu2O and Cu(OH)(2) nanoparticles, making it a durable and efficient catalyst under visible light irradiation.
Article
Materials Science, Ceramics
Daneshwaran Balaji, Sathasivam Pratheep Kumar
Summary: Incorporating cesium into orthorhombic langbeinite phosphosilicate has been shown to be feasible, with low crystallinity and significant impact on thermal expansion.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
A. Bandyopadhyay, B. J. Sarkar, S. Sutradhar, J. Mandal, P. K. Chakrabarti
Summary: By incorporating Gd3+ ions instead of Ce4+ ions in cerium oxide lattice, improvements were made in its magneto-dielectric properties. Nonlinearity due to magnetic ordering was introduced in the doped sample Ce0.90Gd0.10O2-delta, indicating a transition to ferromagnetic phase. Transmission electron microscopy study revealed important morphological behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Anil K. Paidi, Ankur Sharma, Vinod K. Paidi, Mani Pujitha Illa, Kug-Seung Lee, Sangsul Lee, Docheon Ahn, Amartya Mukhopadhyay
Summary: A sol-gel route was used to prepare a NASICON-structured Na2ZrFe(PO4)3 material, which contains earth-abundant mixed transition metal ions and exhibits reversible electrochemical Fe2+/ Fe3+ redox and Na-intercalation/deintercalation properties. The material has a rhombohedral structure and shows outstanding cyclic stability, high Na-diffusivity, and good rate-capability through solid-solution pathway.
INORGANIC CHEMISTRY
(2023)
Article
Crystallography
Sabrine Hermi, Mohammed G. Althobaiti, Abdullah A. Alotaibi, Abdulhadi H. Almarri, Wataru Fujita, Frederic Lefebvre, Cherif Ben Nasr, Mohamed Habib Mrad
Summary: The study reports a novel cadmium complex with chemical preparation, crystal structure, Hirshfeld surface analysis, and spectroscopic characterization. The analysis revealed the main interactions governing the crystal packing of the structure. SEM/EDX and XRD confirmed crystallinity, FT-IR and DFT showed correlation between experimental and theoretical wavenumbers, and HOMO-LUMO energy gap predicted electric conductivity. TGA/DTA analysis indicated stability up to 380 K.
Article
Chemistry, Inorganic & Nuclear
Sirine El Arni, Oumayma Rguig, Mohammed Hadouchi, Abderrazzak Assani, Mohamed Saadi, Abdelilah Lahmar, Houssny Bouyanfif, Mimoun El Marssi, Lahcen El Ammari
Summary: The CoInOPO4 compound was synthesized using the sol-gel method and its crystal structure was determined using powder X-ray diffraction data and Rietveld method. The structure of this phosphate consists of a three-dimensional network built up from (Co(2)/In(2))O6 octahedra, (In(1)/Co(1))O5 square pyramid, and PO4 tetrahedra. Infrared and Raman spectroscopy were used to analyze the structural information, and magnetic investigation revealed that the dominating interactions in this phosphate are antiferromagnetic.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yifei Zhang, Joakim Brorsson, Takashi Kamiyama, Takashi Saito, Paul Erhart, Anders E. C. Palmqvist
Summary: This study investigates the chemical ordering in quaternary clathrates Ba8AlxGa16-xGe30, revealing differences in site occupancy factors of trivalent elements and atomic displacement patterns of Ba atoms based on synthesis methods. The research demonstrates key relationships between chemical ordering and structural properties, providing new insights for designing and optimizing thermoelectric materials.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
S. Divya, S. Cathrin Lims, M. Manivannan, R. Robert, S. Jerome Das, M. Jose
Summary: This study reports the synthesis of Fe3O4 nanoparticles and Fe3O4@SiO2 nanocomposites coated with amorphous silica using solvothermal and modified Stober methods. Various analysis techniques were employed to confirm their structure and formation, and their magnetic and electrical properties were investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mengchen Liu, Qianqian Yin, Shengnan Zhong, Huimin Sun, Yibo Wang, Shuai Liu, Jing Wang, Yanyan Diao, Feifei Yang, Tingting Xin
Summary: Two rare earth coordination polymers were synthesized using zwitterionic ligands. The structural characterization revealed differences in the coordination environments of La3+ ions in 1 and Gd3+ ions in 2. Both polymers exhibited good thermostability, decomposing at high temperatures to form La2O3 and Gd2O3. Magnetic properties of 2 were studied in the temperature range of 2-300 K.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Ceramics
Ayano Nakamoto, Kohta Nambu, Hiroshi Masuda, Hidehiro Yoshida
Summary: Undoped Y2O3 polycrystals were densified by flash sintering under DC or AC electric field with varying holding times up to 60 min. The chemical bonding state and crystal structure were investigated by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), respectively. DC flash sintering with longer holding times (>= 30 min) resulted in blackening in cathodic regions, indicating the electrode-dependent introduction of neutral oxygen vacancies. The Y 3d3/2 and Y 3d5/2 binding energies decreased with increasing holding time in both DC- and AC-flash-sintered Y2O3 specimens, regardless of polarity, indicating that positively charged oxygen vacancies were introduced by the flash sintering in an electrode-independent manner, even under DC electric field. XRD analysis revealed short-range structural fluctuations in flash-sintered specimens with longer holding times. These electrode-dependent and independent point defect generations under electric fields may be related to the enhanced atomic diffusion during flash sintering.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(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)