Articles tagged with Magnetism
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Scientists have successfully created and identified merons in synthetic antiferromagnets, which are rare collective topological structures. The achievement was made possible through extensive simulations and experiments by researchers at Johannes Gutenberg University Mainz.
Researchers have created a computer using an array of VCSELs that leverages optical feedback to efficiently solve complex optimization problems. The system encodes information in linear polarization states, minimizing interactions between variables and overcoming the von Neumann bottleneck.
Researchers successfully demonstrate a third branch of magnetism in manganese telluride, combining ferromagnetic and antiferromagnetic properties. This discovery offers promising opportunities for future applications in information technology and nanoelectronics.
A new research proposes a hemispherical shell shape to optimize organic photovoltaic cells, achieving a 66% increase in light absorption and improved angular coverage. The study presents advanced computational analysis, revealing the remarkable capabilities of this innovative design.
Altermagnetism has been experimentally demonstrated by researchers at Mainz University, showing promise for increasing storage capacity in spintronics. The discovery was made using a momentum microscope to visualize the velocity distribution of electrons in altemagnetic RuO2.
Researchers have proved the existence of altermagnetism, a new type of magnetism that offers distinct advantages for next-generation magnetic memory technology. Altermagnets exhibit strong spin-dependent phenomena like ferromagnets while possessing zero net magnetization.
Researchers have developed a novel microfluidic magnetic detection system that enables rapid and highly sensitive detection of tumor-derived exosomes, potential biomarkers for cancer diagnosis. The system's serpentine design enhances TDE capture efficiency, while DNA probes augment specificity.
Researchers at Tohoku University developed a new method for creating transparent magnetic materials using laser heating, addressing the challenge of integrating magneto-optical materials with optical devices. The breakthrough enables the creation of compact magneto-optical isolators and miniaturized lasers.
Researchers found that space weather events can trigger 'wrong side' failures in rail signalling systems, which are more hazardous than 'right side' failures. This study highlights the need for the industry to consider the risks of space weather and explore mitigation strategies.
Scientists have discovered magnetic monopoles in hematite, a type of iron oxide closely related to rust. The study uses diamond quantum sensing to observe swirling textures and faint magnetic signals, revealing the emergence of these isolated magnetic charges.
Scientists have discovered how atoms and spins move together in electromagnons, a hybrid excitation that can be controlled with light. The study used time-resolved X-ray diffraction to reveal the atomic motions and spin movements, showing that atoms move first and then the spins fractionally later.
Researchers have discovered a way to use heat signals to process data in energy-efficient computers. The team's approach uses non-conductive magnetic strips and metal spacers to conduct and amplify heat signals, enabling logical computing operations and heat diodes.
Researchers at ETH Zurich detected a new type of ferromagnetism in an artificially produced material, where magnetic moments align due to kinetic energy minimization. The material exhibits ferromagnetic behavior when electrons form 'doublons' and spread out through quantum mechanical tunnelling.
Researchers at DTU Energy replicated a 2021 experiment where a fast-spinning magnet caused another magnet to hover. The force affecting the magnets is attributed to coupling between movement and magnetic force, allowing it to defy classical physics.
A randomized clinical trial found that avoiding aspirin as part of an antithrombotic regimen reduces bleeding events without increasing thromboembolism risk in patients with advanced heart failure treated with left ventricular assist devices. The study suggests that aspirin avoidance may be a viable option for these patients.
Researchers at Universitat Autònoma de Barcelona developed a wireless device that induces magnetism in non-magnetic cobalt nitride layers using electrical voltage. This breakthrough allows for the control of magnetic properties without wires, enabling applications in biomedicine and computing.
Researchers using ALMA detected a fully formed magnetic field in a distant galaxy, similar to nearby galaxies, which provides new insights into the formation of galactic-scale magnetic fields. The discovery suggests that intense star formation in the early Universe could have played a role in accelerating the development of these fields.
The PULSE project combines magnetic and acoustic levitation to bioprint highly sophisticated organoids that closely mimic human organs. These in vitro heart models will provide invaluable insights into cardiac physiology and pathology, enabling the development of preventive and therapeutic solutions.
Researchers created a thin, flexible sensor that can visualize heat flow in real-time using thermoelectric phenomenon ANE. The sensor can be built deep inside devices and is quick, cheap, and easy to manufacture.
A team of researchers has made a groundbreaking discovery about the magnetic interactions in TbMn6Sn6, a Kagome layered topological magnet. At intermediate temperatures, both uniaxial and isotropic terbium ions exist, with the population of spherical terbium increasing as temperature rises.
Japanese researchers develop improved ternary superconductor bulks from liquid sources, demonstrating enhanced performance and microstructural analysis shows significant reductions in secondary phase particle size. The findings have huge potential for applications in magnetic levitation, electric motors, and energy systems.
Researchers have developed a non-invasive magnetic stimulation therapy called ThorS-MagNT that targets hyperactive nerves in the midback, potentially reducing debilitating symptoms of diabetic gastroparesis. In a pilot study, patients experienced significant improvements in nausea and vomiting, allowing them to enjoy meals again.
Scientists create high-performance bulk magnesium diboride superconducting magnets with low-cost technique, exhibiting good critical current density and trapped magnetic field. The work paves the way for commercialization of MgB2 superconducting magnets.
Researchers found that two outermost electrons from each nickel ion behaved differently, cancelling each other out in a phenomenon called a spin singlet. This led to the discovery of two families of propagating waves at dramatically different energies, contradicting expectations of local excitations.
Researchers at Tokyo Institute of Technology developed a simple sol-gel method to synthesize highly pure bifunctional solid acid-base catalysts with desirable properties. The new method produces SrTiO3 nanoparticles with high surface area, showing 10 times higher catalytic activity than commercially available titanates.
Scientists at Brookhaven National Laboratory used x-rays to study the electrons in nickel-based superconducting materials, revealing substantial similarities with cuprate superconductors. The research could help scientists zero in on key features essential for these materials' remarkable ability to carry electrical current.
Researchers have long observed that animals respond to magnetic fields, but the exact nature of this 'magnetic sense' remains unclear. A new review provides an overview of the field, including methods used to study magnetoreception, such as GPS tracking and tissue manipulation.
A team of researchers from Japan has developed a single purely organic neutral molecule with an incomplete oxidation state for the first time. The new molecule exhibits multi-step phase transitions and crossover caused by intra- and intermolecular electronic interactions, leading to unique strongly correlated electron properties.
Researchers at MIT developed a new sensor that converts light into a magnetic signal detectable by MRI, allowing for the mapping of light distribution in tissue. This breakthrough has implications for optogenetic experiments and monitoring patients receiving light-based therapies for cancer treatment.
A new rapid test developed by the University of Würzburg uses magnetic nanoparticles to detect antibodies against SARS-CoV-2 with high sensitivity. The test takes only a few seconds to produce reliable results, enabling faster diagnosis and treatment of infectious diseases.
Researchers at the University of Cambridge discovered that the London Underground is contaminated with ultrafine metallic particles, including maghemite, which can be inhaled and enter the bloodstream. The particles are so small that they evade traditional air pollution monitoring methods, posing a significant risk to public health.
Direct observation of magnetic reconnection in the solar wind reveals a common bursty state, leading to plasma acceleration and heating. Turbulent reconnection increases with solar wind speed, highlighting its role in energizing plasmas.
A team of researchers from Johannes Gutenberg University Mainz have successfully developed a new approach to improve the way data is processed and stored. By combining chirality in spin configurations and molecules, they aim to create faster, smaller, and more efficient data storage devices.
Scientists used new instrumentation to study the chiral magnetic ordering of Cu2OSeO3, revealing helical and conical magnetic modulations. This discovery enables novel investigations of polar magnetic textures with high spatial resolution and short time scales.
Researchers probed local structure and magnetic properties of a Mn-rich Cantor alloy using EXAFS and XMCD techniques. The results show complex magnetic ordering with coexistence of different phases, consistent with macroscopic behavior.
Researchers at Shibaura Institute of Technology developed an optimized recipe to retain superconductivity in bulk MgB2 by enhancing its critical current density. By combining sintering conditions with controlled addition of nanometer-sized amorphous boron and dysprosium oxide, the team achieved a superior critical current density.
A multidisciplinary study uses magnetometers to investigate the magnetic fields of metropolitan areas, finding that each city has a distinct magnetic signature. This unique characteristic can be exploited to analyze anomalies in city operation and long-term trends of urban development.
Researchers at PPPL developed smaller, stronger high-temperature superconducting magnets for spherical tokamaks, enabling more efficient fusion power plants. The new magnets reduce construction costs and increase performance by shrinking the size of tokamaks.
Researchers at Johannes Gutenberg University Mainz are investigating the dynamics of spin structures, including the pinning effects of skyrmions on thin films. The study reveals that skyrmions get stuck in
Researchers at SUTD design a multiferroic van der Waals heterostructure combining magnetic and ferroelectric 2D materials, offering voltage switchable magnetism. This material can be used for ultracompact memory devices with minimal energy consumption.
Scientists investigated the local structure of a high-entropy Cantor alloy using X-ray absorption spectroscopy, revealing structural relaxations in chromium atoms and no evidence of secondary phases. The study correlated these findings with macroscopic magnetic properties.
Scientists at Max Born Institute demonstrate ultrafast emergence of all-optical switching by generating a nanometer-scale grating through interference of two pulses in the extreme ultraviolet spectral range. The researchers identify an intensity ratio as a fingerprint observable for AOS in diffraction experiments.
Researchers at the University at Buffalo have developed a new magnetic material that can help monitor the amount of charge left in lithium-ion batteries. By tracking changes in the material's magnetism, scientists can estimate the battery's state of charge.
Scientists have refined the use of magnetic fields to improve tokamak performance by suppressing instabilities called ELMs. The new technique allows plasma to operate in H-mode for longer periods, increasing efficiency and reducing the risk of damage to internal parts.
The study reveals that superconductors can transmit spin currents between magnets, allowing for controlled magnetic interactions and modifying the magnetic response. This breakthrough enables new approaches to information processing using magnetic materials at low temperatures.
Researchers discovered that light can trigger magnetism in normally nonmagnetic materials by aligning electron spins. This breakthrough could enable the development of quantum bits for quantum computing and other applications.
Researchers create a quantum anomalous Hall insulator by stacking a ferromagnetic material between two 2D topological insulators, enabling room-temperature lossless transport. The new architecture could lead to ultra-low energy future electronics or topological photovoltaics.
Researchers at Martin-Luther-University Halle-Wittenberg discovered a way to convert frequencies to higher ranges using magnetic materials without additional components. This breakthrough could make certain electronic components obsolete and improve the energy efficiency of digital technologies.
Researchers have discovered that magnetic spin waves can propagate on circular paths in certain materials, enabling efficient and compact information transfer. This phenomenon, known as Landau quantization, has significant implications for the development of new electronic components.
MIT physicists detected a hybrid particle composed of an electron and phonon, with a bond 10 times stronger than known hybrids. The discovery could enable scientists to manipulate material properties through dual control, leading to new magnetic semiconductors and ultra-efficient electronics.
A team of Boston College researchers has discovered a dramatic re-arrangement of magnetic domains with thermal cycling in a Mott insulator. They used spin-polarized scanning tunneling microscopy to map the local strength of antiferromagnetic ordering on nanometer length scales.
Physicist Trevor David Rhone is using artificial intelligence to accelerate materials discovery, exploring the vast number of potential materials candidates to identify those with novel properties. His approach aims to speed up the process and enable new applications for spintronics, data storage, and quantum computing.
Researchers suppressed magnetic order across a material for several picoseconds using ultrafast laser pulses. The study reveals how magnetic interactions are suppressed not just locally but everywhere, with the goal of understanding magnetism control for applications like data storage and superconductivity.
Rice University experimental physicist Ming Yi has been awarded a five-year grant from the Department of Energy to explore magnetism in two-dimensional materials. Her research aims to understand how key ingredients for magnetism evolve as materials transition from 3D to 2D.
Researchers developed a thin, soft magnetic sensor matrix sheet system with tenfold improvement in sensitivity, enabling real-time visualization of magnetism. The system can be attached to the skin without causing discomfort and has high spatial resolution due to its high permeability.
Scientists at Ames Laboratory have discovered a new quantum criticality in a superconducting material, exhibiting a hedgehog spin-vortex crystal antiferromagnetic state without nematic transitions. This finding suggests that spin fluctuations are the primary driver of superconductivity.
Researchers have developed a new platform for studying 2D magnetism, which could lead to breakthroughs in quantum computing, sensing technologies, and superconductors. The discovery of novel materials with specific functionality could also deepen our understanding of fundamental issues in condensed matter physics.
Researchers successfully created the first experimental realization and structural investigation of single-layer VS2, revealing its unique electronic properties. The team discovered a new vanadium sulphide compound with similar stoichiometry to single-layer VS2, raising hopes for two-dimensional magnetism.
Researchers from Uppsala University and collaborating institutions developed a new method to measure magnetism at the atomic level, enabling detailed analysis of magnetic nanostructures. This advancement is crucial for the development of next-generation spintronic components that require functional units only a few nanometers large.
By introducing small amounts of scandium, researchers have discovered an unexpected way to strengthen magnetism in rare earth alloys, transforming it into ferromagnetism. This breakthrough could lead to new tools for controlling and manipulating magnetic materials.