Article
Engineering, Electrical & Electronic
Shanchuan Liang, Ti Xie, Nicholas A. A. Blumenschein, Tong Zhou, Thomas Ersevim, Zhihao Song, Jierui Liang, Michael A. A. Susner, Benjamin S. S. Conner, Shi-Jing Gong, Jian-Ping Wang, Min Ouyang, Igor Zutic, Adam L. L. Friedman, Xiang Zhang, Cheng Gong
Summary: Scientists have achieved electrical control of a two-dimensional magnetic insulator by using a thin ferroelectric polymer, which could be used to create compact devices.
NATURE ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Xueying Liu, Chenhai Shen, Xueping Li, Tianxing Wang, Mengjie He, Lin Li, Ying Wang, Jingbo Li, Congxin Xia
Summary: Due to unique magnetoelectric coupling effects, two-dimensional multiferroic van der Waals heterostructures (vdWHs) show great potential for next-generation information processing and storage devices. By designing vdWHs with different stacking patterns, different band alignments and semiconductor transitions can be achieved, providing a possible route to realize nanoscale multifunctional spintronic devices.
Article
Multidisciplinary Sciences
Eric R. Hoglund, De-Liang Bao, Andrew O'Hara, Sara Makarem, Zachary T. Piontkowski, Joseph R. Matson, Ajay K. Yadav, Ryan C. Haislmaier, Roman Engel-Herbert, Jon F. Ihlefeld, Jayakanth Ravichandran, Ramamoorthy Ramesh, Joshua D. Caldwell, Thomas E. Beechem, John A. Tomko, Jordan A. Hachtel, Sokrates T. Pantelides, Patrick E. Hopkins, James M. Howe
Summary: As the size of materials decreases, the heterogeneities at interfaces become as significant as the surrounding materials. This study demonstrates the localized vibrational response of interfaces in strontium titanate-calcium titanate superlattices. The local structure at the interfaces creates phonon modes that determine the overall vibrational response of the superlattice when the spacing of the interfaces approaches the spatial extent of phonons.
Article
Materials Science, Multidisciplinary
John Mangeri, Davi Rodrigues, Monica Graf, Sudipta Biswas, Olle Heinonen, Jorge Iniguez
Summary: This paper proposes a continuum approach to study the magnetoelectric multiferroic BiFeO3, combining the ferroelectric phase field method and micromagnetic simulations. The modeling effort allows for the self-consistent description of the different order parameters on the same scale. The model is used to analyze the domain wall topology and the influence of FE domain boundaries on magnetic domain walls, as well as to simulate spin-wave transmission and magnetoelectric switching. The study provides insights for further research on nanostructures of BFO at the mesoscale.
Article
Materials Science, Ceramics
Zhixiang Tao, Ying Song, Zongwei Xu
Summary: This study systematically investigated the vibrational characteristics of sapphire under temperature variation using Raman scattering measurements. The results revealed the linear temperature dependence of phonon mode frequencies at high temperatures and provided corresponding temperature coefficients. Additionally, the study quantified the frequency downshift and linewidth broadening in strain-free sapphire and applied a theoretical model to analyze these phenomena. The findings can contribute to a deeper understanding of the behavior of optical phonons in sapphire and have potential applications in other materials.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Y. C. Liu, H. B. Niu, J. B. Lin, V. Wang
Summary: A contrastive investigation of the symmetry aspects of phonons in monolayer chromium trihalides and their Janus structures Y-3-Cr-2-X-3 (X, Y = F, Cl, Br, I) was conducted within group theory. The study provides classification of phonon vibration modes and predicts the infrared and Raman activity of optic phonons. The findings clarify discrepancies in Raman and infrared activity and suggest the importance of distinguishing between monolayer and Janus structures for spectroscopy identification. Moreover, the analysis demonstrates that Janus structures are more favorable for observing spin-phonon coupling, magneto-optical effect, and phonon chirality.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Ceramics
Olivera Zemljak, Danijela Lukovic Golic, Milica Pocuca-Nesic, Aleksandra Dapcevic, Pavla Senjug, Damir Pajic, Tina Radosevic, Goran Brankovic, Zorica Brankovic
Summary: Doping Yttrium manganite with titanium can improve the microstructural and multiferroic properties. The titanium-doped ceramic samples show improved density, reduced microcracks, and enhancements in magnetic and ferroelectric responses.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Vilmos Kocsis, Yusuke Tokunaga, Toomas Room, Urmas Nagel, Jun Fujioka, Yasujiro Taguchi, Yoshinori Tokura, Sandor Bordacs
Summary: This study focuses on the spin-lattice coupling in multiferroic Swedenborgites and demonstrates the enhanced magneto-electric coupling through orbital degrees of freedom.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Evgenii Sterkhov, Nikolay M. Chtchelkatchev, Elena Mostovshchikova, Roman E. Ryltsev, Sergey A. Uporov, Gheorghe L. Pascut, Andrey Fetisov, Svetlana G. Titova
Summary: PrBaMn2O6 with ordered alternate stacking of PrMnO3/BaMnO3 layers exhibits two magnetic phase transitions close to room temperature, making it a promising magnetocaloric and magnetoresistive material. The experimentally detected structural transition is attributed to the splitting of eg-doublet states due to the tendency towards orbital ordering at the metal-insulator phase transition.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Condensed Matter
M. Revelli Beaumont, P. Hemme, Y. Gallais, A. Sacuto, K. Jacob, L. Valade, D. de Caro, C. Faulmann, M. Cazayous
Summary: Investigation of kappa-(BEDT-TTF)(2)Cu(NCS)(2) through Raman scattering in both bulk and nanoparticle compounds revealed anomalies in phonon frequencies during the transition from a bad metal phase to a Fermi liquid phase.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Nanoscience & Nanotechnology
S. N. Neal, S. Li, T. Birol, J. L. Musfeldt
Summary: In this study, infrared absorption and Raman scattering spectroscopies were utilized to investigate the properties of 1T-HfS2. By analyzing the LO-TO splitting of the E-u vibrational mode and reevaluating the mode mass, unit cell volume, and dielectric constant, the Born effective charge was revealed to be ZB* = 5.3e, in agreement with first-principles calculations. Furthermore, the Born charge was decomposed into polarizability and local charge, with polar displacement-induced charge transfer from sulfur p to hafnium d being a key factor in the enhanced Born charge. The findings suggest that 1T-HfS2 is an ionic crystal with strong and dynamic covalent effects.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Xiaojian Bai, Randy S. Fishman, Gabriele Sala, Daniel M. Pajerowski, V. Ovidiu Garlea, Tao Hong, Minseong Lee, Jaime A. Fernandez-Baca, Huibo Cao, Wei Tian
Summary: This study reports a detailed analysis of the inelastic neutron scattering data on the hybrid molecule-based multiferroic compound (ND4)2FeCl5·D2O, revealing a transition in the underlying multiferroic mechanism between different phases. The spin dynamics of both phases can be accurately described by a Heisenberg Hamiltonian with easy-plane anisotropy, indicating robust magnetic interactions compared to electric polarization. The balance of exchange couplings and frustrated interactions between the phases remains consistent, suggesting stability in the magnetic interactions of (ND4)2FeCl5·D2O.
Article
Materials Science, Ceramics
Chun-Hai Wang, Wenhua Shu, Yuchang Qing, Fa Luo, Dongmei Zhu, Wancheng Zhou
Summary: In this study, the vibrational modes and lattice dynamics of C-type Y2O3 ceramics were investigated using vibrational spectra and DFT calculations. The frequency, phonon band structure, and density of phonon states were characterized, revealing the influence of different elements on the vibrational modes.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Physics, Multidisciplinary
K. S. Sivaraj, S. Thoufeeq, M. R. Anantharaman
Summary: Yttrium Manganite, a multiferroic material, has potential applications in Ferroelectric Random Access Memories. By substituting Chromium, the electrical conductivity can be enhanced. The synthesized samples of different compositions were characterized and analyzed using X-ray diffraction, Scanning Electron Microscopy, impedance spectroscopy, and magnetic measurements. The results showed that Chromium substitution increased the electrical conductivity but diminished the ferroelectric properties.
Article
Physics, Applied
Seema Kumari, Khyati Anand, Mohd Alam, Labanya Ghosh, Swayangsiddha Ghosh, Prince Gupta, Rahul Singh, A. K. Jain, S. M. Yusuf, Anup K. K. Ghosh, Anita Mohan, Sandip Chatterjee
Summary: The structural, dielectric, and magnetic properties of Bi0.8Tb0.2Fe0.8Mn0.2O3 have been studied. Doping leads to a structural shift and an increase in the dielectric constant. The observed spontaneous exchange bias is larger than the conventional exchange bias at room temperature. Doping also reduces the Neel temperature and increases the magnetization. The system consists of an antiferromagnetic core and a diluted antiferromagnetic shell with a net magnetization under the field. The system's reasonable H-EB and H-C values at room temperature make it appealing for multifunctional devices.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Crystallography
Mikhail S. Platunov, Irina A. Gudim, Elena N. Ovchinnikova, Ksenia A. Kozlovskaya, Fabrice Wilhelm, Andrei Rogalev, Amir Hen, Vsevolod Y. Ivanov, Alexander A. Mukhin, Vladimir E. Dmitrienko
Summary: This study presents the X-ray Natural Circular Dichroism (XNCD) imaging technique for spatially resolved mapping of X-ray optical activity in non-centrosymmetric materials, demonstrating its utility for multiferroic crystals.
Article
Physics, Multidisciplinary
Lukas Weymann, Alexey Shuvaev, Andrei Pimenov, Alexander A. Mukhin, David Szaller
Summary: A dense system of independent oscillators connected only by interacting with the same cavity excitation mode will radiate coherently in a phenomenon called superradiance. Experimental investigations on yttrium iron garnet thin films show that with increasing film thickness, losses due to coherent radiation dominate the system's internal broadening.
COMMUNICATIONS PHYSICS
(2021)
Article
Instruments & Instrumentation
I. Breslavetz, A. Delhomme, T. Pelini, A. Pawbake, D. Vaclavkova, M. Orlita, M. Potemski, M. A. Measson, C. Faugeras
Summary: The experimental setup is developed for optical spectroscopy experiments under extreme conditions and enables in-depth exploration of the phase diagram of condensed matter systems. It is applied to the study of bulk FePS3, a layered antiferromagnet with a Neel temperature of T & AP; 120 K.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Chemistry, Multidisciplinary
Jan Wyzula, Ivan Mohelsky, Diana Vaclaykoya, Piotr Kapuscinski, Martin Veis, Clement Faugeras, Marek Potemski, Mike E. Zhitomirsky, Milan Orlita
Summary: We report on magneto-optical studies of the quasi-two-dimensional van der Waals antiferromagnet FePS3. Our measurements reveal an unusual antiferromagnetic resonance excitation with a four-times larger Zeeman splitting in an applied magnetic field. We attribute this excitation to the condensation of multipolar magnons, which can produce new exotic states in large-spin materials with a strong magnetic anisotropy.
Article
Optics
S. Gebert, C. Consejo, S. S. Krishtopenko, S. Ruffenach, M. Szola, J. Torres, C. Bray, B. Jouault, M. Orlita, X. Baudry, P. Ballet, S. V. Morozov, V. I. Gavrilenko, N. N. Mikhailov, S. A. Dvoretskii, F. Teppe
Summary: Since the emergence of graphene, proposals for tunable Landau lasers in the terahertz frequency range have been made. Despite the non-equidistance of the Landau levels, a non-radiative process still persists in Landau-quantized graphene. This work demonstrates Landau emission from Dirac fermions in HgTe quantum wells, which can be tuned by both magnetic field and carrier concentration.
Article
Chemistry, Inorganic & Nuclear
Ruth Weller, Mihail Atanasov, Serhiy Demeshko, Ting-Yi Chen, Ivan Mohelsky, Eckhard Bill, Milan Orlita, Franc Meyer, Frank Neese, C. Gunnar Werncke
Summary: The magnetic properties of linear iron(I) silylamides K{crypt}[FeL2] and [KFeL2] were investigated. Slow-relaxation of magnetization, magnetic hysteresis, and magnetic blocking were observed in K{crypt}[FeL2]. In [KFeL2], with increased axial anisotropy, higher relaxation barrier and blocking temperature were observed, in agreement with field-dependent IR-spectroscopy, magnetic measurements, and theoretical analysis.
INORGANIC CHEMISTRY
(2023)
Article
Physics, Applied
Gennadiy A. Komandin, Artem M. Kuzmenko, Igor E. Spektor, Alexander A. Mukhin
Summary: The absorption mechanisms in orthoferrite TbFeO3 were studied using various spectroscopy techniques. The spectra were analyzed using the oscillator model and four-parameter model, and the parameters were determined. The main absorption processes were identified, including contributions from phonons, multi-phonon processes, electron transitions, and antiferromagnetic resonance modes. The electrodynamic response in TbFeO3 showed significant absorption in the THz range due to multi-phonon processes, surpassing optical phonon contribution by an order of magnitude at room temperature.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Amit Pawbake, Thomas Pelini, Ivan Mohelsky, Dipankar Jana, Ivan Breslavetz, Chang-Woo Cho, Milan Orlita, Marek Potemski, Marie-Aude Measson, Nathan P. Wilson, Kseniia Mosina, Aljoscha Soll, Zdenek Sofer, Benjamin A. Piot, Mike E. Zhitomirsky, Clement Faugeras
Summary: This study investigates the magnetization process of a biaxial antiferromagnet under an external magnetic field and finds that applying hydrostatic pressure can induce a metamagnetic transition, leading to a new magnetic phase.
Article
Physics, Multidisciplinary
V. Yu. Ivanov, A. M. Kuz'menko, A. Yu. Tikhanovskii, A. A. Pronin, A. A. Mukhin
Summary: In TbFeO3 orthoferrite, a magnetic field H-b along the a axis induces an electric polarization P-a(H-b) at temperatures below the antiferromagnetic ordering temperature for the terbium subsystem. This polarization is accompanied by anomalies associated with metamagnetic and spin-reorientation transitions. The observed effects can be qualitatively explained by considering the allowed magnetoelectric interactions in the field-induced magnetic structures.
Article
Materials Science, Multidisciplinary
I. Mohelsky, J. Wyzula, B. A. Piot, G. D. Gu, Q. Li, A. Akrap, M. Orlita
Summary: Using Landau-level spectroscopy, the temperature dependence of the energy band gap in zirconium pentatelluride (ZrTe5) is determined. It is found that the band gap reaches E-g = (5 & PLUSMN; 1) meV at low temperatures and increases monotonically with the temperature. This implies that ZrTe5 is a weak topological insulator with noninverted ordering of electronic bands in the center of the Brillouin zone. Magnetotransport experiments show that the resistivity anomaly in ZrTe5 is not connected with the temperature dependence of the band gap.
Article
Materials Science, Multidisciplinary
A. Yu. Tikhanovskii, V. Yu. Ivanov, A. M. Kuzmenko, A. M. Balbashov, Z. Wang, V. Skumryev, A. A. Mukhin
Summary: Experimental and theoretical studies were carried out on the magnetoelectric properties of three types of Fe langasite multiferroics. The induced polarization was found to depend on both the magnitude and orientation of the magnetic field. The group theoretical analysis revealed a relationship between polarization and magnetic order parameters. At high magnetic fields, the behavior of electric polarization changes qualitatively and is strongly influenced by the magnetic field orientation.
Article
Physics, Multidisciplinary
G. Krizman, B. A. Assaf, M. Orlita, G. Bauer, G. Springholz, R. Ferreira, L. A. de Vaulchier, Y. Guldner
Summary: Topological interface states in multivalley systems are studied using magnetooptical Landau level spectroscopy in topological crystalline insulator heterostructures. The properties of these states are characterized, revealing the factors affecting them in two dimensions.
PHYSICAL REVIEW RESEARCH
(2022)
Meeting Abstract
Chemistry, Multidisciplinary
K. Beauvois, V. Simonet, S. Petit, J. Robert, F. Bourdarot, M. Gospodinov, A. A. Mukhin, R. Ballou, V. Skumryev, E. Ressouche
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
David Santos-Cottin, Michele Casula, Luca de' Medici, F. Le Mardele, J. Wyzula, M. Orlita, Yannick Klein, Andrea Gauzzi, Ana Akrap, R. P. S. M. Lobo
Summary: The investigation on BaNiS2 reveals the electronic structure with Dirac nodal lines, showing an unusual temperature-independent isosbestic line in optical conductivity that ends at a Van Hove singularity. First-principles calculations demonstrate that this isosbestic line is associated with transitions across Dirac nodal states.
Article
Materials Science, Multidisciplinary
V Zelezny, V Goian, J. Navratil, C. Drasar, M. Orlita, B. A. Piot, J. Prokleska, M. Misek, J. Kastil, S. Kamba
Summary: Infrared reflectance measurements were conducted on highly p-type Bi2Te3 crystals over a wide temperature range. An anomalous nonmonotonous temperature dependence of the plasma edge frequency was observed, with a pronounced redshift and blueshift above and below room temperature. This behavior is explained by the temperature evolution of the free carrier optical weight N/m*, which is determined by the total carrier concentration and characteristic mass. The interpretation is supported by complementary magnetotransport and magnetoreflectivity experiments.
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)
