Article
Engineering, Electrical & Electronic
F. Djali, T. Ouahrani, S. Hiadsi, M. R. Boufatah
Summary: This study presents the first attempt to investigate the thermoelectric properties of FeZrTe half-Heusler alloy through theoretical calculations. The phonon dispersion and crystal structures are obtained using density functional theory and finite displacement method. The results show that FeZrTe alloy is mechanically and dynamically stable in its type I structure, and has a semiconducting character with a band gap of 1.4 eV. The variations of thermoelectric properties with carrier concentration and temperature have been studied, indicating the potential for constructing an n-p couple for a thermoelectric device.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Payal Saha, Bhargab Kakati, Purbajyoti Bhagowati, Munima B. Sahariah
Summary: This study investigates the impact of spin-orbit coupling (SOC) on the electronic and magnetic properties of Mn1.5PtSn compound using density functional theory. Regardless of SOC, ferrimagnetic configuration is found to be more stable at the ground state compared to ferromagnetic and antiferromagnetic configurations. The SOC affects the ground state energy of the compounds, and various analysis methods provide insights into the magnetic and electronic properties of the system. The stable ferrimagnetic configuration shows high spin polarization and low magnetocrystalline anisotropy energy, making it suitable for spin-transfer-torque-based device applications like magnetic recording heads.
Article
Materials Science, Multidisciplinary
Frank T. Cerasoli, Andrew R. Supka, Anooja Jayaraj, Marcio Costa, Ilaria Siloi, Jagoda Slawinska, Stefano Curtarolo, Marco Fornari, Davide Ceresoli, Marco Buongiorno Nardelli
Summary: PAOFLOW is a software tool that constructs tight-binding Hamiltonians from electronic wavefunctions by projecting onto atomic orbitals, providing numerous materials properties and performance improvements. The latest version includes symmetry operations, internal projection routines, non-constant relaxation time models, and real space atomic orbitals generation.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Computer Science, Interdisciplinary Applications
Nariman Abu el Kher, Israa Zeid, Nayla El-Kork, Mahmoud Korek
Summary: The electronic structure of alkaline-earth metal hydride cations SrH+ and BaH+ have been studied, with various spectroscopic parameters and rovibrational constants determined.
These substances play a crucial role in the absorption spectrum of the sun, making theoretical studies on them essential.
JOURNAL OF COMPUTATIONAL SCIENCE
(2021)
Article
Physics, Applied
Khoveto Vero, Riyajul Islam, J. P. Borah
Summary: L1(0)-MnAl exhibits excellent magnetic properties and has the potential to bridge the gap between hard ferrite and rare-earth based permanent magnets. The structure stability and uniaxial magnetic anisotropy energy (K-u) are key factors for its applications. This study investigates the effects of C-doping and Fe substitution on the structural stability and magnetic properties of L1(0)-MnAl, and finds that the introduction of C and Fe can enhance the structure stability and increase K-u.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Multidisciplinary
Yue Hu, Shiming Yan, Deyou Jin, Wen Qiao, Ru Bai, Tiejun Zhou
Summary: The Ki of Fe/MgO, Fe/Pt/MgO, and Fe/Ir/MgO heterostructures with strains from -4.5% to 4.5% were calculated in this study. It was found that the Fe/Pt/MgO and Fe/Ir/MgO exhibited much larger Ki values (2.415 mJ m(-2) and -4.468 mJ m(-2)) compared to Fe/MgO (0.840 mJ m(-2)). Strain can significantly manipulate the magnetic anisotropy of these structures. The origin of these behaviors was analyzed through layer-resolved, orbital-resolved, and k-resolved Ki calculations.
Article
Chemistry, Physical
Xuefei Liu, Zhaofu Zhang, Zhao Ding, Bing Lv, Zijiang Luo, Jian-Sheng Wang, Zhibin Gao
Summary: A study using first principles method systematically predicted the anisotropic electronic and mechanical properties of 2D As2S3, showing a significantly higher Young's modulus ratio along two axes compared to black phosphorous. These findings provide valuable insights for the realization of flexible orientation-dependent nano-devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Ben Shpiro, Marcel David Fabian, Eran Rabani, Roi Baer
Summary: In this paper, we develop a formalism for calculating forces on the nuclei within a nonorthogonal atom-centered basis set representation and apply it to a peptide solvated in water. We use an embedded-fragment approach to reduce statistical errors and find that the systematic bias is sufficiently small when using 120 stochastic orbitals.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Diana Benea, Viorel Pop
Summary: The intrinsic magnetic properties of (Fe1-xMx)(2)B alloys were calculated using the spin-polarized relativistic Korringa-Kohn-Rostoker (SPR-KKR) band structure method. The transition metal elements M (M = Co, Ni, Mo, Ta, W and Re) can form stable M2B or FeMB alloys with a tetragonal Cu2Al structure type. The study aims to find a suitable dopant to switch the in-plane easy magnetization axis (EMD) to axial and enhance the magnetocrystalline anisotropy energy (MAE) without significant decrease of magnetization and Curie temperature.
Article
Chemistry, Physical
Alexander Bakulin, Sergey S. Kulkov, Svetlana E. Kulkova
Summary: In this study, analytic expressions for the temperature-dependent diffusion coefficient of oxygen in the alpha 2-Ti3Al alloy were obtained using Landman's method. The estimation of oxygen diffusion coefficient, pre-exponential factor, and activation energy was performed using migration barriers calculated by the first principle method within density functional theory. The validated method showed good agreement between the calculated diffusion coefficient of oxygen and available experimental data and theoretical results obtained within statistical approach.
Article
Chemistry, Multidisciplinary
Aamir Iqbal Waidha, Humera Khatoon Siddiqui, Yuji Ikeda, Maren Lepple, Sami Vasala, Manuel Donzelli, A. D. Fortes, Peter Slater, Blazej Grabowski, Ulrike Kramm, Oliver Clemens
Summary: A new anion-deficient perovskite material with unique oxygen vacancy ordering has been synthesized through a two-step heating process, showing G-type antiferromagnetic ordering confirmed by neutron powder diffraction, magnetic measurements, and DFT studies. The compound exhibits a high electronic conductivity and remarkable bifunctional catalytic activity, comparable to that of Ba0.5Sr0.5Co0.8Fe0.2O3-y, making it a promising candidate for efficient catalysts in oxygen-related reactions.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Hyeri Yoo, Kyeong-Seok Lee, Sahn Nahm, Gyu Weon Hwang, Sangtae Kim
Summary: The study investigates the impact of ligand chemistry and coverage on InP surface properties using density functional theory calculations, revealing that different ligands result in different crystal shapes and surface states are altered upon ligand adsorption.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Arpan Mondal, Sanjit Konar
Summary: The study for the first time observed the importance of equatorial crystal fields on the magnetic anisotropy of ytterbium single molecule magnets. Analysis of three similar dinuclear ytterbium complexes revealed weak antiferromagnetic interactions and field-induced slow relaxation of magnetization. Complex 1 showed a higher energy barrier for spin reversal and a remarkable energy barrier within a specific frequency range.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Abdelazim M. Mebed, Muhammad Mushtaq, Muhammad Faizan, Riadh Neffati, Amel Laref, Sumegha Godara, Sana Maqbool
Summary: In this study, the adsorption of CO molecule on the (001) surface of Heusler alloy CrCoIrGa was investigated using DFT+U calculations. It was found that the surface retained the bulk atomic positions with no surface reconstruction, but had more spin-polarization and atomic moments due to the presence of unsaturated bonds. The most favorable adsorption configuration was found to be with the CO molecule adsorbed on the top of the Ir atom. This indicates a strong interaction (chemisorption) between the (001) surface and CO gas molecule, suggesting potential applications in gas sensing.
Article
Chemistry, Multidisciplinary
Guangrui Zhang, Hongbo Hao, Yuping Liang, Yu Qiao, Songwei Bai, Heyan Liu, Hongzhi Luo
Summary: The equiatomic quaternary Heusler alloy FeRuCrSi was synthesized and its atomic ordering, magnetic properties and electronic structure were investigated. The alloy exhibited a single phase with a lattice constant of 5.811 Å at room temperature. A disorder related to the random occupation of Fe and Ru at specific sites was identified. The disorder affected the magnetic properties and narrowed the gaps in the electronic structure.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Physics, Applied
Eugenia Pyurbeeva, Jacob L. Swett, Qingyu Ye, Oscar W. Kennedy, Jan A. Mol
Summary: Feedback-controlled electric breakdown of graphene can be applied to encapsulated graphene constrictions, resulting in conductance switching behavior attributed to atomic-scale fluctuations of graphene below the encapsulating layer. This method opens up possibilities for fabricating encapsulated room-temperature single-electron nanodevices and provides insights into the physical mechanism of conductance switching in graphene nanodevices.
APPLIED PHYSICS LETTERS
(2021)
Article
Multidisciplinary Sciences
Sonka Reimers, Dominik Kriegner, Olena Gomonay, Dina Carbone, Filip Krizek, Vit Novak, Richard P. Campion, Francesco Maccherozzi, Alexander Bjorling, Oliver J. Amin, Luke X. Barton, Stuart F. Poole, Khalid A. Omari, Jan Michalicka, Ondrej Man, Jairo Sinova, Tomas Jungwirth, Peter Wadley, Sarnjeet S. Dhesi, Kevin W. Edmonds
Summary: This study reveals that the antiferromagnetic (AF) domain structure in CuMnAs thin films is dominated by nanoscale structural twin defects, which play a crucial role in determining the location and orientation of AF domain walls. The results provide insights into the interplay of crystalline defects, strain, and magnetic ordering in AF materials, offering a route to optimize device performance.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Libor Smejkal, Anna Birk Hellenes, Rafael Gonzalez-Hernandez, Jairo Sinova, Tomas Jungwirth
Summary: In this study, we propose that giant and tunneling magnetoresistance effects can be achieved in unconventional collinear antiferromagnets. We present archetype model mechanisms for these effects in multilayers composed of these unconventional collinear antiferromagnets and predict an approximately 100% scale for the effects based on first-principles calculations. We also highlight the ability of the alternating spin-momentum coupling to enable magnetic excitation by spin-transfer torque.
Article
Physics, Applied
J. J. F. Heitz, L. Nadvornik, V Balos, Y. Behovits, A. L. Chekhov, T. S. Seifert, K. Olejnik, Z. Kaspar, K. Geishendorf, V Novak, R. P. Campion, M. Wolf, T. Jungwirth, T. Kampfrath
Summary: The study demonstrates complete suppression of terahertz-pulse-induced resistance switching in antiferromagnetic CuMnAs thin films using ultrafast gating. Gating functionality is achieved through optically generated transiently conductive parallel channels in the semiconductor substrate, with suppression timescale determined by photocarrier lifetime. Effects observed are mediated primarily by the substrate, with potential application for transient low-power masking of structured areas with feature sizes of about 200 nm and smaller.
PHYSICAL REVIEW APPLIED
(2021)
Article
Chemistry, Physical
Ondrej Dyck, Jacob L. Swett, Charalambos Evangeli, Andrew R. Lupini, Jan A. Mol, Stephen Jesse
Summary: Graphene is proposed for various nanodevice designs, but faces challenges in visualization, measurement, and manipulation at nanometer and atomic scales. This study demonstrates the use of SEEBIC imaging technique to visualize conductance and connectivity in graphene nanodevices, as well as detect subtle differences in charge transport.
Review
Nanoscience & Nanotechnology
Libor Smejkal, Allan H. MacDonald, Jairo Sinova, Satoru Nakatsuji, Tomas Jungwirth
Summary: This review organizes the current understanding of anomalous antiferromagnetic materials that generate a Hall effect and discusses their applications in spintronics, topological condensed matter, and multipole magnetism.
NATURE REVIEWS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Filip Krizek, Sonka Reimers, Zdenek Kaspar, Alberto Marmodoro, Jan Michalicka, Ondrej Man, Alexander Edstrom, Oliver J. Amin, Kevin W. Edmonds, Richard P. Campion, Francesco Maccherozzi, Samjeet S. Dhesi, Jan Zubac, Dominik Kriegner, Dina Carbone, Jakub Zelezny, Karel Vyborny, Kamil Olejnik, Vit Novak, Jan Rusz, Juan-Carlos Idrobo, Peter Wadley, Tomas Jungwirth
Summary: This paper explores magnetic textures at the ultimate atomic scale in antiferromagnetic CuMnAs and achieves atomic resolution imaging using differential phase-contrast imaging within aberration-corrected scanning transmission electron microscopy. The study reveals abrupt domain walls corresponding to the Neel order reversal between neighboring atomic planes. The findings shed light on the development of electrical and ultrafast optical antiferromagnetic devices with magnetic field-insensitive neuromorphic functionalities.
Article
Physics, Multidisciplinary
Libor Smejkal, Jairo Sinova, Tomas Jungwirth
Summary: Recent research has focused on spintronic and spin-splitting phenomena that break time-reversal symmetry. This study introduces a new approach based on nonrelativistic spin-symmetry groups to resolve the conflicting notions of unconventional ferromagnetism or antiferromagnetism and proposes a third type of magnetic phase. The research identifies crystal-rotation symmetries and characteristics of materials hosting this phase, including alternating spin-splitting sign and broken time-reversal symmetry.
Article
Physics, Multidisciplinary
R. D. Gonzalez Betancourt, J. Zubac, R. Gonzalez-Hernandez, K. Geishendorf, Z. Soban, G. Springholz, K. Olejnik, L. Smejkal, J. Sinova, T. Jungwirth, S. T. B. Goennenwein, A. Thomas, H. Reichlova, J. Zelezny, D. Kriegner
Summary: A spontaneous anomalous Hall signal was observed in an epitaxial film of MnTe, a semiconductor with collinear antiparallel magnetic ordering and zero net magnetization, even in the absence of an external magnetic field. The anomalous Hall effect originates from the unconventional phase with strong time-reversal symmetry breaking and alternating spin polarization. The anisotropic crystal environment of Mn atoms, caused by nonmagnetic Te atoms, plays a vital role in establishing the unconventional phase and generating the anomalous Hall effect.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Libor Smejkal, Jairo Sinova, Tomas Jungwirth
Summary: Magnetism is a significant and technologically relevant field in condensed-matter physics, traditionally characterized by ferromagnetism and antiferromagnetism. However, a new magnetic phase called altermagnetism has recently been discovered, which exhibits unique features in spin symmetry and net magnetization. Investigating this phenomenon allows for a deeper understanding of condensed-matter physics and its impact on other research areas.
Correction
Engineering, Electrical & Electronic
Zexin Feng, Xiaorong Zhou, Libor Smejkal, Lei Wu, Zengwei Zhu, Huixin Guo, Rafael Gonzalez-Hernandez, Xiaoning Wang, Han Yan, Peixin Qin, Xin Zhang, Haojiang Wu, Hongyu Chen, Ziang Meng, Li Liu, Zhengcai Xia, Jairo Sinova, Tomas Jungwirth, Zhiqi Liu
NATURE ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Zexin Feng, Xiaorong Zhou, Libor Smejkal, Lei Wu, Zengwei Zhu, Huixin Guo, Rafael Gonzalez-Hernandez, Xiaoning Wang, Han Yan, Peixin Qin, Xin Zhang, Haojiang Wu, Hongyu Chen, Ziang Meng, Li Liu, Zhengcai Xia, Jairo Sinova, Tomas Jungwirth, Zhiqi Liu
Summary: This study reports an anomalous Hall effect in collinear altermagnetic ruthenium dioxide, with an anomalous Hall conductivity exceeding 1,000 omega(-1) cm(-1). The phenomenon arises from an alternative magnetic phase in RuO2, characterized by alternating spin polarization in both real-space crystal structure and momentum-space band structure. The results could potentially lead to the exploration of topological Berry phases and dissipationless quantum transport in crystals of abundant elements and with a compensated antiparallel magnetic order.
NATURE ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
J. Zelezny, Z. Fang, K. Olejnik, J. Patchett, F. Gerhard, C. Gould, L. W. Molenkamp, C. Gomez-Olivella, J. Zemen, T. Tichy, T. Jungwirth, C. Ciccarelli
Summary: This research investigates spin-orbit torque and unidirectional magnetoresistance in the room-temperature ferromagnet NiMnSb with inversion asymmetry. The competition of Rashba- and Dresselhaus-type spin-orbit couplings plays a crucial role in determining the effects, and commonly used approaches for interpreting experiments may not be directly applicable. The unidirectional magnetoresistance has both longitudinal and transverse components, which complicates its separation from thermoelectric contributions in experimental techniques.
Review
Chemistry, Multidisciplinary
Jasper P. Fried, Jacob L. Swett, Binoy Paulose Nadappuram, Jan A. Mol, Joshua B. Edel, Aleksandar P. Ivanov, James R. Yates
Summary: Solid-state nanopore fabrication techniques have advanced significantly, allowing for the rapid and simple creation of nanopores with diameters down to a few nanometres in electrolyte environments, enabling applications in DNA sequencing, protein analysis, and more.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
John J. Cully, Jacob L. Swett, Kyle Willick, Jonathan Baugh, Jan A. Mol
Summary: The synthesis of low-dimensional materials with unique properties has opened up new possibilities for creating hybrid nanomaterial devices. However, challenges remain in integrating individual nanoparticles into devices at scale. A graphene nanogap platform has been developed to address this issue, allowing for the capture and integration of single nanoparticles for applications in novel devices and optoelectronics.
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)
