Article
Chemistry, Inorganic & Nuclear
Cong Zhang, Shuangjiu Feng, Xucai Kan, Yong Zhu, Zongyang Zhang, Yue Li, Haiming Tian, Wei Sun, Xiansong Liu
Summary: In this study, Al3+ ion substituted M-type Sr0.7La0.3Fe11.75.x-AlxCo0.25O19 (0 < x < 0.12) hexagonal ferrites were synthesized by solid state reaction. The lattice parameters a and c decreased with the increasing Al3+ content, and a single M-type strontium ferrite was obtained within the Al content range of 0 to 0.08. Scanning electron microscopy images showed hexagonal platelet-like particles, and the size of the magnetic powders was about 2-5 μm. The saturation magnetization (M-s) of the hexaferrite decreased with the increase of x from 0 to 0.12, while coercivity (H-c) of the magnetic powders increased with Al3+ content (x) from 0 to 0.12.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Physical
Xueyun Zhou, Jun Wang, Dongsheng Yao
Summary: In this study, RE0.01Ni0.3Zn0.4Mn0.3Fe2O4 (RE=Fe, La, Nd, Sm, Gd, Dy, Yb) ferrites with precisely controlled composition were prepared. It was found that the lattice constant decreases with the increase of atomic number of rare earth. The infrared spectra showed changes in the tetrahedral and octahedral bonds. The introduction of rare earth slightly reduced the saturation magnetization and initial permeability, but had the same effect on Ms. These ferrites exhibited spin glass state or superparamagnetism at high temperature, and Sm, Gd, and Dy doped ferrites displayed unique dielectric properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Khalid Mujasam Batoo, Ritesh Verma, Ankush Chauhan, Rajesh Kumar, Muhammad Hadi, Omar M. Aldossary, Y. Al-Douri
Summary: This study reported the synthesis of Gd and Nb co-doped BT ceramic oxides and investigated their structural and electrical properties. Various analysis techniques were used to characterize the samples, revealing the influence of Gd and Nb doping on the electrical properties of the ceramic materials, which were found to improve with increasing dopant concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
G. Sriramulu, K. Praveena, B. Ravinder Reddy, Asokan Kandasami, S. Katlakunta
Summary: A series of SrFe12-2x(CoMg)2xO19 (x = 0.0-1.0) samples were prepared using microwave-hydrothermal method. The study observed changes in structure and properties with increasing x, such as increased agglomeration of grains and decreased coercivity. The samples showed a low reflection loss at a specific frequency.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Suresh Kumar, R. Padma Suvarna, K. Chandra Babu Naidu, Prajna P. Mohapatra, Pamu Dobbidi
Summary: The La1-xBixTiO3 (x = 0.2, 0.4, 0.6 & 0.8) (LBTO) nanoparticles were successfully synthesized via hydrothermal method. The diffraction analysis confirmed their polycrystalline nature, while the microstructure revealed the presence of nanorods and asymmetrical stones like nanoparticles. Raman spectra showed the characteristic vibration bands of titanium/bismuth/lanthanum metals and oxygen. The study on electromagnetic properties revealed that the samples with x = 0.2 and 0.6 exhibited negative magnetic loss values, suggesting their potential application as microwave absorbers.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Hemaunt Kumar, Puneet Negi, Jitendra Pal Singh, R. C. Srivastava, Subia Ambreen, K. Asokan
Summary: This study investigates the structural, electrical and transport properties of cobalt nanoferrites (CoFe2O4) doped with dysprosium cation (Dy3+) on the iron (Fe3+) site. The results confirm that the samples maintain a pure cubic spinel structure. The average crystallite size ranges from 49 to 72 nm and is not affected by the concentration of Dy3+ ions. The lattice parameters vary from 8.34 Å for pristine CoFe2O4 to 8.39 Å for the sample with the highest doping concentration (Dy(x) = 0.15). The porosity decreases with increasing Dy3+ ion concentration. The electrical properties are analyzed through dielectric behavior at different frequencies and temperatures. The ferrite with Dy(x) = 0.15 exhibits the highest dielectric constant in the range of 441 to 5234, indicating its suitability for memory storage devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Y. Sakout, O. El Ghadraoui, E. H. Lahrar, M. Zouhairi, N. Tijani, A. Harrach, T. Lamcharfi, M. Haddad, H. Zouihri
Summary: This study presents a comprehensive analysis of the synthesis, characterization, and properties of barium-doped lead titanate ceramics. The results show that barium doping induces changes in crystal structure, optical properties, and dielectric behavior.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
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, Multidisciplinary
A. Dinesh, K. Kanmani Raja, Ayyar Manikandan, M. A. Almessiere, Y. Slimani, A. Baykal, Hajer Saeed Alorfi, Mahmoud Ali Hussein, Anish Khan
Summary: This paper investigates the effects of cerium (Ce) substitution on the morphological, magnetic, and structural characteristics of Mn0.5Zn0.5CexFe2-xO4 ferrite nanoparticles. The sample with Ce content of 0.3 showed higher degradation performance under visible light irradiation, suggesting its potential for high-frequency applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Composites
Kriti Vaid, Amit Chaurasia, Deepshikha Rathore, Rahul Singhal, Umesh Kumar Dwivedi
Summary: This paper investigates the formation of BaTiO3/CoFe2O4 filled low-density-polyethylene composite via melt mixing process and analyzes their dielectric and electromagnetic shielding behaviors. Different amounts of samples were prepared and the dielectric behavior of the composite material was found to change with increasing temperature and frequency, with an EMI shielding effectiveness of up to 17.9 dB.
POLYMER COMPOSITES
(2021)
Article
Chemistry, Multidisciplinary
Mah Rukh Rehman, Muhammad Aftab Akram, Iftikhar Hussain Gul
Summary: In this study, cobalt-substituted strontium hexaferrite nanoparticles were synthesized using the sol-gel route, and their magnetic, electrical, and structural properties were investigated. The results showed that cobalt doping increased the saturation magnetization and decreased the coercivity, while exhibiting semiconductor behavior. Additionally, the dielectric constant decreased with increasing cobalt content.
Article
Materials Science, Ceramics
A. K. Thomas, Merin George, Kevin Abraham, D. Sajan
Summary: Polycrystalline SCTO ceramics exhibit tremendously high dielectric permittivity ε' at low frequencies, with two distinct, thermally triggered dielectric relaxations. The electrical and dielectric behaviors of SCTO ceramics are reasonably analogous to those of CCTO ceramics.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Deepika, Neha Paras, Anil Arya, Rajesh Kumar, Shashi Sharma, Sohan Lal, V Kumar, Anurag Gaur
Summary: In this study, polycrystalline Y-type hexagonal ferrite samples with composition Ba2-xPbx-Co1.5Zn0.5Fe12O22 (0 < x < 0.4) were successfully prepared by a sol-gel auto-combustion method. The samples were analyzed using various techniques, and the results showed that the samples had a single-phase Y-type hexaferrite structure with a hexagonal platelet-like morphology. The dielectric constant increased with the concentration of Pb, and the coercivity also increased. Furthermore, the samples exhibited magnetoelectric coupling properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Keshav Kumar, Shrawan Kumar Mishra, Sanjay Singh, Ivan Baev, Michael Martins, Fabio Orlandi, Pascal Manuel, Dhananjai Pandey
Summary: Investigations into the magnetic ground state of BaFe12O19 (BFO) using X-ray absorption spectra (XAS), X-ray magnetic circular dichroism (XMCD), and neutron diffraction at 1.2 and 1.5 K, revealed a conical-type magnetic structure. This observation opens up the possibility of type-II multiferroicity in undoped BFO.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(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, Analytical
Rashida Aslam, Batool Fatima, Dilshad Hussain, Rahat Nawaz, Saadat Majeed, Muhammad Naeem Ashiq, Tahir Imran Qureshi, Muhammad Najam-Ul-Haq
Summary: The research successfully achieved electrochemical sensing of resorcinol through the synthesis of cadmium-glutathione complex, showing a detection limit of up to 0.3 μM in the presence of Cd-GSH modification. Good recovery performance in different water samples was also observed, indicating the potential use of the synthesized complex as electrochemical sensors.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Maira Sadaqat, Sumaira Manzoor, Laraib Nisar, Abeera Hassan, Deependra Tyagi, Jafar Hussain Shah, Muhammad Naeem Ashiq, Khurrum Saleem Joya, Thamraa Alshahrani, Muhammad Najam-ul-Haq
Summary: In this study, Fe-doped NiTe2 nanoflakes were synthesized via a simple solvothermal approach and exhibited high electrochemical activity and stability when grown on Nickel foam. The Ni0.4Fe0.6Te2/NF showed low overpotential and high current density for the Oxygen evolution reaction (OER), with excellent stability for 30 hours in controlled electrolysis experiment without significant change in OER activity.
ELECTROCHIMICA ACTA
(2021)
Article
Environmental Sciences
S. Manzoor, M. A. Malana, T. Alshahrani, R. S. Gohar, W. Q. Khan, M. Najam-ul-Haq, M. F. Ehsan, A. Shah, M. N. Ashiq, S. Ahmed
Summary: A nano-sized semiconductor photocatalyst, zirconium oxide/cadmium sulfide nanocomposite, was successfully developed for the degradation of three aromatic dyes under visible light irradiation. The high degradation efficiency of the composite for different dyes was mainly attributed to the suppression of charge carrier recombination.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Muazzama Batool, Dilshad Hussain, Ahmed Akrem, Muhammad Najam ul Haq, Shafqat Saeed, Qamar Saeed
Summary: This study developed an eco-friendly biopesticide by nanoencapsulating cysteine protease from Albizia procera, which showed high efficacy in controlling stored product insect pests and has the potential for commercial development.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2021)
Article
Chemistry, Analytical
Batool Fatima, Ummama Saeed, Dilshad Hussain, Shan-e-Zahra Jawad, Saadat Majeed, Sumaira Manzoor, Saima Yasmin Qadir, Muhammad Naeem Ashiq, Muhammad Najam-ul-Haq
Summary: An non-enzymatic sensor based on NiTe nanorods was developed for detecting hemoglobin from anemic pregnant patients. The sensor's parameters were optimized with standard hemoglobin samples, and it quantitatively determined hemoglobin from blood samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biochemical Research Methods
Rabia Javeed, Dilshad Hussain, Fahmida Jabeen, Muhammad Salman Sajid, Batool Fatima, Muhammad Naeem Ashiq, Muhammad Najam-ul-Haq
Summary: Apo-H is a plasma glycoprotein with diagnostic value for disease detection. An efficient method for analyzing Apo-H N-glycans was developed, involving sample preparation, enrichment, and detection. Selective derivatization of sialic acids was used to stabilize them for analysis, with potential applications for large clinical cohorts.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Muhammad Kashif, Muhammad Fiaz, Muhammad Salman Sajid, Fiza Gul, Muhammad Asim Farid, Muhammad Naeem Ashiq, Muhammad Najam-ul-Haq, Muhammad Athar
Summary: In this study, the catalytic efficiency of amino functionalized Zr-based metal organic framework UiO-66-NH2 towards OER is improved by incorporating cerium-based nanocomposites. The synthesized material CoO/Ce2O3@UiO-66-NH2/NF exhibits excellent OER-catalytic activity with a low Tafel slope.
Article
Materials Science, Ceramics
Abdul Rasheed Rashid, Abdul Ghafoor Abid, Sumaira Manzoor, Abeer Mera, Tahani Al-Muhimeed, Abeer A. AlObaid, Syed Nasir Shah, Muhammad Naeem Ashiq, Muhammad Imran, Muhammad Najam-Ul-Haq
Summary: Transition metal oxides, especially zinc oxide based materials, have been explored for supercapacitor applications due to their safety, low cost, high specific capacitance and high electrochemical activity. In this study, Mn doped ZnO was synthesized by a facile hydrothermal method, showing increased surface area and decreased charge transfer resistance. The material exhibited excellent specific capacitance, specific energy and specific power, making it a promising candidate for new generation supercapacitors.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Abdul Ghafoor Abid, Sumaira Manzoor, Muhammad Usman, Tauseef Munawar, Mehar Un Nisa, Faisal Iqbal, Muhammad Naeem Ashiq, Muhammad Najam-ul-Haq, Afzal Shah, Muhammad Imran
Summary: Non-platinum-based oxygen-defective Sm2O3/Fe2O3 composite with gyroid morphology exhibits superior activity and stability in electrochemical oxygen evolution reaction, providing high porosity and mass charge transport. The strong synergistic effect between Sm2O3 and Fe2O3 in the unique gyroid structure contributes to the remarkable electrocatalytic performance, making it a promising material for electrochemical energy generation.
Article
Energy & Fuels
Nosheen Nazar, Sumaira Manzoor, Yousaf Ur Rehman, Ismat Bibi, Deependra Tyagi, Adeel Hussain Chughtai, Ruqiya Sehrish Gohar, Muhammad Najam-Ul-Haq, Muhammad Imran, Muhammad Naeem Ashiq
Summary: In recent research, rod structured hierarchical cerium oxide/C derived from metal organic framework (MOF) is synthesized as an effective alternative to noble metal catalysts, exhibiting excellent activity and stability in the oxygen evolution reaction.
Article
Chemistry, Analytical
Ummama Saeed, Batool Fatima, Dilshad Hussain, Rabia Ashiq, Muhammad Naeem Ashiq, Muhammad Najam-ul-Haq
Summary: Electrochemical sensing based on CoTe nanorods has been developed for albumin detection in urine samples of CKD patients, showing significant clinical implications. The correlation analysis reveals the relationship between urine albumin levels and ACR as well as urine creatinine levels. This electrochemical sensor could be used as prognostic factors for CKD patients before progressing to ESRD.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Muhammad Salman Sajid, Shafaq Saleem, Fahmida Jabeen, Batool Fatima, M. Zulfikar, Muhammad Naeem Ashiq, Habtom W. Ressom, Tara Louise Pukala, Muhammad Najam-ul-Haq
Summary: A three-step strategy was introduced to develop inherent iminodiacetic (IDA)-functionalized nanopolymer that enhances glycopeptide enrichment. The nanopolymer exhibits high selectivity, sensitivity, regeneration ability, and batch-to-batch reproducibility due to its improved surface area and hydrophilicity. It enables the identification of N-glycopeptides characteristics of glycoproteins from digested human serum, showcasing its potential as a valuable tool in large-scale biomedical glycoproteomics studies.
Article
Energy & Fuels
Mehar Un Nisa, Sumaira Manzoor, Abdul Ghafoor Abid, Nissren Tamam, Muhammad Abdullah, Muhammad Najam-Ul-Haq, M. S. Al-Buriahi, Z. A. Alrowaili, Zakaria M. M. Mahmoud, Muhammad Naeem Ashiq
Summary: In this study, CdSe/SnO2 nanocomposite with enhanced catalytic activity and stability was synthesized. The nanocomposite exhibits good electrocatalytic performance in oxygen evolution reaction (OER) and overall water splitting, showing potential for enhancing the efficiency of other materials in the future.
Article
Energy & Fuels
Sumaira Manzoor, Maira Sadaqat, Jafar Hussain Shah, Soumaya Gouadria, Fayyaz Hussain, Khurram Saleem Joya, Muhammad Najam-ul-Haq, Salma Aman, A. V. Trukhanov, Muhammad Naeem Ashiq
Summary: The synergistic effect of iron and copper in the oxygen evolution reaction (OER) was investigated, and microspheres of CuOx decorated with dendritic nanoarrays of FeOx were synthesized as an efficient OER electrocatalyst. The optimized 3% FeOx@CuOx showed comparable activity to RuO2, with low overpotential, high stability, and small Tafel slope.
Article
Chemistry, Physical
F. F. Alharbi, Sumaira Manzoor, Tauseef Munawar, Mehar Un Nisa, Abdul Ghafoor Abid, Faisal Iqbal, Salma Aman, Muhammad Fahad Ehsan, Muhammad Najam-Ul-Haq, Muhammad Naeem Ashiq
Summary: ZnO-CoTe photocatalyst with S-scheme transfer mechanism was successfully synthesized and demonstrated superior photocatalytic degradation for methyl red and methylene blue dyes under sunlight irradiation.
SURFACES AND INTERFACES
(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)