Article
Chemistry, Multidisciplinary
Dennis Zywitzki, Raoul Schaper, Engin Ciftyuerek, Jan-Lucas Wree, Dereje H. Taffa, Daniel M. Baier, Detlef Rogalla, Yujiao Li, Michael Meischein, Alfred Ludwig, Zheshen Li, Klaus Schierbaum, Michael Wark, Anjana Devi
Summary: Transition metal ferrites (such as CFO and NFO) have gained attention as potential materials for supercapacitors, with CVD processes offering advantages in producing high-quality, uniform, and dense ferrite films. Electrodes deposited on conducting substrates exhibit pseudocapacitive behavior, with high interfacial capacitances.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
S. M. Kukhtaruk, A. W. Rushforth, F. Godejohann, A. V. Scherbakov, M. Bayer
Summary: This study investigates the effects of an applied in-plane external magnetic field on ferromagnetic nanogratings through micromagnetic simulations. The research found that in specific field directions, magnon mode parameters significantly differ from classical cases, exhibiting complex spatial distributions and low group velocities.
Article
Physics, Applied
Ke Wang, Xiansong Xu, Yuan Cheng, Min Zhang, Jian-Sheng Wang, Hai Wang, Gang Zhang
Summary: Using density functional theory calculations, we investigated the spin-wave spectrum and magnon-phonon interaction in the CGT monolayer. The MPI in the CGT monolayer exhibits weak in-plane isotropy and a strong wave vector dependence. The temperature increase from 5K to 55K leads to a 4 times decrease in the magnon relaxation time, emphasizing the significance of MPI in the spin dynamics of the ferromagnetic CGT monolayer.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
K. Jenni, S. Kunkemoeller, A. Tewari, R. A. Ewings, Y. Sidis, A. Schneidewind, P. Steffens, A. A. Nugroho, M. Braden
Summary: The magnetic excitations in ferromagnetic SrRuO3 were investigated using inelastic neutron scattering experiments on triple-axis and time-of-flight spectrometers. The low-energy low-temperature response exhibited a quadratic spin-wave dispersion with an anisotropy gap. The magnon dispersion extended up to 35 meV, with no evidence of a continuum of Stoner excitations below this energy. However, the magnon response weakened at higher energies. In addition to the anomalous softening of the spin-wave stiffness and gap induced by the topology of the Bloch states, the magnon excitations also showed broadening in energy, which increased with temperature.
Article
Multidisciplinary Sciences
Lebing Chen, Chengjie Mao, Jae-Ho Chung, Matthew B. Stone, Alexander I. Kolesnikov, Xiaoping Wang, Naoki Murai, Bin Gao, Olivier Delaire, Pengcheng Dai
Summary: Spin and lattice are fundamental degrees of freedom in solids, and in CrGeTe3, spin waves within the 2D plane exhibit anomalous behavior while magnons along the c axis behave as expected.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Grzegorz Raniszewski, Lukasz Pietrzak
Summary: Carbon nanotubes possess unique properties suitable for various sensing applications, with the ability to fill or attach to metal particles like iron by controlling the synthesis process. This study focused on the chemical vapor deposition (CVD) method to produce carbon iron nanocontainers with maximum nanoparticles to impurities ratio. The investigation included the consideration of mass flow of gases, use of scanning electron microscopy and thermogravimetric methods, and determination of optimal flow and temperature in the reactor.
Article
Physics, Multidisciplinary
Emil Vinas Bostroem, Tahereh Sadat Parvini, James W. McIver, Angel Rubio, Silvia Viola Kusminskiy, Michael A. Sentef
Summary: Controlling edge states of topological magnon insulators is a promising route to stable spintronics devices. However, experimentally determining the topology of magnon bands is challenging. In this study, we establish a fundamental relationship between light-matter coupling and the quantum geometry of magnon states. We propose the use of two-magnon Raman circular dichroism as an optical probe of magnon topology in honeycomb magnets, including the Chern number and topological gap. Our findings open up possibilities for integrating light and topological magnons in functional quantum devices.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Md Mosarof Hossain Sarkar, Md Sherajul Islam, Abdullah Arafat, A. S. M. Jannatul Islam, Naim Ferdous, Md Tawabur Rahman, Minhaz Uddin Sohag, Md Al Imran Fahim, Catherine Stampfl, Jeongwon Park
Summary: In this study, the atomic scale nucleation and growth process of monolayer h-BN on different Ni surfaces were investigated using molecular dynamics simulations. The results showed that the deposition rate and temperature had an impact on the growth of h-BN on Ni surfaces, with a low deposition rate favoring large single-domain h-BN growth and a higher growth rate observed on rough surfaces. Normal Ni substrate was found to be more conducive to the formation of continuous h-BN islands compared to the other two substrates.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Materials Science, Multidisciplinary
Mari Napari, Tahmida N. Huq, Robert L. Z. Hoye, Judith L. MacManus-Driscoll
Summary: Nickel oxide (NiOx) is a key p-type oxide semiconductor with versatile and tunable properties, widely used in electronic devices. The properties of NiO(x) thin films strongly depend on the deposition method and conditions. Efficient implementation of NiO(x) in next-generation devices will require controllable growth and processing methods.
Review
Chemistry, Physical
Huaning Jiang, Peng Zhang, Xingguo Wang, Yongji Gong
Summary: The development of magnetic 2D materials using CVD has attracted significant attention, as it offers a robust method for synthesizing ultrathin magnetic nanosheets with fascinating properties. Recent researches have focused on the fabrication methods and the manipulation of magnetic properties in 2D materials through heteroatoms doping and phase transition induced during CVD growth.
Article
Chemistry, Multidisciplinary
Xiang Xu, Tingting Zhong, Nian Zuo, Zexin Li, Dongyan Li, Lejing Pi, Ping Chen, Menghao Wu, Tianyou Zhai, Xing Zhou
Summary: In this study, CuCrS2 nanoflakes were successfully synthesized by salt-assisted chemical vapor deposition, demonstrating switchable ferroelectric polarization even at a thickness of 6 nm. The high T-C of around 700 K can be attributed to the robust tetrahedral bonding configurations of Cu cations, with further clarification provided by a theoretically predicted high order-disorder transition barrier and structure evolution from 600 to 800 K. Additionally, interlocked out-of-plane and in-plane ferroelectric domains were observed, leading to the demonstration of two devices based on different polarizations.
Article
Nanoscience & Nanotechnology
Kishan Thodkar, Fabian Gramm
Summary: The high field-effect mobility and two-dimensional nature of graphene films make it a promising material for developing sensitive sensors with low power consumption. The chemical vapor deposition process allows scalable production of high-quality graphene films. This study presents a simplified fabrication process to develop suspended chemical vapor deposition graphene devices with enhanced field-effect mobility operating at room temperature.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Sayandip Ghosh, Guido Menichetti, Mikhail I. Katsnelson, Marco Polini
Summary: Two-dimensional honeycomb ferromagnets provide opportunities to study interactions that are not observed in standard bulk ferromagnets. They have an optical spin-wave branch and a plasmonic mode, and when these two branches meet, interactions between charge and spin sectors can occur.
Article
Chemistry, Multidisciplinary
Ruinan Wu, Yueguo Hu, Peisen Li, Junping Peng, Jiafei Hu, Ming Yang, Dixiang Chen, Yanrui Guo, Qi Zhang, Xiangnan Xie, Jiayu Dai, Weicheng Qiu, Guang Wang, Mengchun Pan
Summary: This study focuses on improving the tunnel magnetoresistance effect in magnetic tunnel junctions by growing high-quality graphene on Ni(111) substrates. Through APCVD, a high-quality graphene/Ni(111) heterostructure with an atomically sharp interface was successfully fabricated, providing a new approach for interface engineering in 2D spintronic applications.
Article
Chemistry, Physical
Pierre Tomasini
Summary: The silicon chemical vapor deposition process via silane is determined using classical thermodynamics, showing that a linear function of temperature controls silicon growth rates and neatly maps the response of growth rate activation energy, providing clarity to the parameter space. The study demonstrates the portability of the linear function of temperature across reactors and extracts reactor scaling factors, reducing the complex silicon deposition process to its essentials through thermodynamics.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
R. Mahat, U. Karki, K. C. Shambhu, J. Y. Law, V Franco, I Galanakis, A. Gupta, P. LeClair
Summary: This study reports an experimental and computational investigation of the structural, magnetic, and mechanical properties of quaternary Heusler alloys. The results show that the alloys have single phase microstructures, exhibit half-metallic ferromagnetism, and have high Curie temperatures and hardness values. These properties suggest great potential for spintronic applications.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
K. C. Shambhu, R. Mahat, S. Regmi, J. Y. Law, V. Franco, G. Mankey, W. H. Butler, A. Gupta, P. LeClair
Summary: In this paper, a single-phase compound Co2Fe1.25Ge0.75 was successfully synthesized by tuning the stoichiometry of the parent Co2FeGe alloy. The compound exhibits high saturation magnetization and Curie temperature, and thin films of the compound show excellent epitaxial quality and magnetic properties.
Article
Physics, Applied
Sudhir Regmi, Zhong Li, K. C. Shambhu, Rabin Mahat, Ankur Rastogi, Ranjan Datta, Arunava Gupta
Summary: Epitaxial thin films of cobalt ferrite have been successfully grown on isostructural substrates using pulsed laser deposition. The films on ZnGa2O4 substrates are defect-free and under slight compressive strain, while the films on MgGa2O4 substrates show strain relaxation and defect formation.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
N. Naghibolashrafi, K. C. Shambhu, Vinay I. Hegde, J. Ma, A. Gupta, P. LeClair, W. H. Butler, C. Wolverton, Avik W. Ghosh
Summary: The Co-Ti-Sn family of alloys has been synthesized with various compositions. Co1.5TiSn, a compound predicted by theoretical calculations, has been successfully synthesized and exhibits magnetic properties consistent with predictions of half-metallicity. Analysis of the alloy system suggests that the Co1.5TiSn compound is close to the convex hull, possibly stabilized kinetically or entropically.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jabeen Abbasi, Sudhir Regmi, Arunava Gupta
Summary: The magnetic chromium-based chalcogenide spinel system has unique electrical, magnetic, and optical properties, making it an interesting field of study. We have successfully deposited Cd(1-x)CuxCr2S4 thin films using a chemical spray deposition method, allowing for the manipulation of the magnetic and optical properties through composition changes.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
R. Mahat, U. Karki, K. C. Shambhu, J. Y. Law, V. Franco, A. Gupta, P. LeClair
Summary: We experimentally investigated Co2-xVxFeGe quaternary Heusler alloys with 0 <= x <= 1 and found that they are promising candidates for spintronics applications. Single phase microstructures were observed for V compositions from x = 0.25 to x = 0.625, while other V concentrations were multi-phased. The alloys had high Curie temperatures that scaled linearly with the saturation magnetic moment, enabling applications at room temperature and above.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Instruments & Instrumentation
Valeria Lauter, Kang Wang, Tim Mewes, Artur Glavic, Boris Toperverg, Mahshid Ahmadi, Badih Assaf, Bin Hu, Mingda Li, Xinyu Liu, Yaohua Liu, Jagadeesh Moodera, Leonid Rokhinson, Deepak Singh, Nian Sun
Summary: M-STAR is a next generation polarized neutron reflectometer with advanced capabilities for nanoscience and spintronics studies. It enables improved grazing incidence diffraction measurements and opens new possibilities for probing near-surface dynamics.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Physics, Applied
Chhatra R. Joshi, Mahendra Acharya, Md Sariful Sheikh, John Plombon, Arunava Gupta
Summary: Epitaxial films of multiferroic BiFe1-xCoOx (3) (BFCO) were grown on specific substrates using pulsed laser deposition technique. The effect of cobalt substitution on the magnetic, electrical, and piezo-/ferroelectric properties was investigated. Experimental results showed reduction of coercive voltage and changes in magnetic and electrical properties with cobalt substitution, which were consistent with theoretical calculations.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Ashok Pokhrel, Bhuwan Nepal, Upama Karki, Arjun Sapkota, Anish Rai, Sara Bey, Tim Mewes, Claudia Mewes
Summary: This article investigates the influence of layer dependent second-order perpendicular anisotropy on higher-order anisotropies in thin films using a macrospin model. The study finds that the origin of the fourth-order anisotropy is linked to the layer-wise variation of magnetization direction, resulting in a dependence on field strength and exchange stiffness. Furthermore, it is observed that the apparent fourth-order anisotropy increases with decrease in exchange stiffness.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Sujan Budhathoki, Arjun Sapkota, Ka Ming Law, Smriti Ranjit, Gregory M. Stephen, Don Heiman, Michelle E. Jamer, Tim Mewes, Adam J. Hauser
Summary: This study reports the magnetic and magnetodynamic properties of strained epitaxial FeGe thin films on Ge(111) substrates, highlighting the generation of orbital moment in tensile-strained FeGe and the impact of in-plane tensile strain on magnetic transition temperature. X-ray magnetic circular dichroism shows partially quenched atomic orbitals in the films, indicating potential utility of strained FeGe in spintronic applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Prabandha Nakarmi, Alicia Koenig, David Tweddle, Kayla Cole-Piepke, Alex M. Leary, Ronald D. Noebe, Gregory B. Thompson, Claudia Mewes, Tim Mewes
Summary: The magnetic and structural characterization of Co75.4Fe2.3Mn2.3Nb4Si2B14 (nominal) nanocomposite thin films and compositional derivatives were studied. The samples were analyzed using transmission electron microscopy and atom probe tomography (APT), and the magnetization dynamics were studied using vibrating sample magnetometry (VSM) and ferromagnetic resonance (FMR) spectroscopy. It was found that FMR spectroscopy was sensitive to the different phases and morphologies present in the samples.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jose J. Sanchez J. Rodriguez, Andrea N. Nunez N. Leon, Jabeen Abbasi, Pravin S. Shinde, Igor Fedin, Arunava Gupta
Summary: This study explores a new nanomaterial, CuCrS2, as a potential absorber layer in solar cells, due to its tunable physical and chemical properties. CuCrS2 nanosheets with average dimensions of 43.6 +/- 6.7 nm in length and 25.6 +/- 4.1 nm in width were synthesized and fabricated into films using the spray-coating method. The resulting film exhibited a net current conversion efficiency of approximately 11.3%.
Article
Chemistry, Multidisciplinary
Mahendra Acharya, Chhatra Raj Joshi, Arunava Gupta
Summary: There is a strong interest in using BiFeO3 and various substituted hetero-structures for RAM and energy-efficient logic and memory devices. Researchers have used DLI-CVD technique to grow high-quality heterostructures of BiFeO3 and Bi-site samarium-substituted epitaxial films, and characterized their structures and morphologies. The films exhibit textured growth, smooth morphology and ferroelectric characteristics. The scaling of switching voltage has been analyzed and compared between substituted and pure BiFeO3 to validate the Kay-Dunn law.
CRYSTAL GROWTH & DESIGN
(2023)
Review
Chemistry, Multidisciplinary
Soubantika Palchoudhury, Karthik Ramasamy, Jinchen Han, Peng Chen, Arunava Gupta
Summary: Transition-metal chalcogenide nanostructures offer a unique platform for next-generation energy storage devices, such as lithium-ion, sodium-ion, and potassium-ion batteries and flexible supercapacitors. With their enhanced electroactive sites and hierarchical flexibility of structure and electronic properties, they provide more viable and attractive electrode materials compared to traditional ones. This review discusses the recent advances in chalcogenide-based electrodes and their structure-property relation, exploring the use of various chalcogenide nanocrystals, two-dimensional transition metal chalcogenides, and novel MXene-based chalcogenide heterostructures for lithium-ion batteries. It also highlights the potential of sodium-ion and potassium-ion batteries and the application of different transition metal chalcogenides, composite materials, and heterojunction bimetallic nanosheets for enhancing the performance of energy storage devices.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Shuang Wu, David A. Smith, Prabandha Nakarmi, Anish Rai, Michael Clavel, Mantu K. Hudait, Jing Zhao, Claudia Mewes, Tim Mewes, Satoru Emori
Summary: This study investigates room-temperature magnetic relaxation in polycrystalline Fe films. It is found that the intrinsic Gilbert damping parameter remains unchanged regardless of the microstructural properties of the Fe films, contrary to intuition. This suggests that the room-temperature intrinsic Gilbert damping in Fe films is primarily determined by the bcc crystal structure within the nanoscale grains, with limited effects from grain boundaries and film roughness. In addition, the in-plane FMR linewidths of the Fe films exhibit nonlinear frequency dependencies, indicating the presence of strong extrinsic damping.
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)
