Articles tagged with Magnetism
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.
Scientists developed a new technique to detect magnetic behavior at the atomic level using aberration correction in electron microscopy. This approach can collect magnetic signals from individual atoms, refining existing methods like x-ray spectroscopy and neutron scattering.
Researchers found one-dimensional magnetic excitations in a metallic material, typical of insulating materials, with spinons contributing to the magnetism. The discovery could lead to new technologies harnessing orbital magnetism for quantum computing components.
Researchers investigated magnetism's influence on atomic vibrations in iron-pnictide superconductors, finding magnetic fluctuations play a crucial role. The study provides insight into the interaction between magnetism and atomic vibrations, potentially leading to materials that superconduct close to room temperature.
A team of scientists has discovered a new magnetic phenomenon by growing perfectly-crystalline atomic layers of a manganite on a nonmagnetic substrate. The discovery shows that adding just one extra layer can transform the magnetism, validating the polar catastrophe model.
Physicists found that changes in electrical resistivity depend on compound composition and can change sign, indicating an intimate connection between magnetism and superconductivity. The study uses single crystals and liquid helium to measure properties in the coexistence region, shedding light on iron-based superconductors.
Researchers find that magnetic atoms are necessary for low-temperature superconductivity in heavy fermion compounds. This discovery sheds light on the delicate balance between magnetism and superconductivity, potentially leading to breakthroughs in high-temperature superconductors.
Researchers at Rice University have successfully created a precision simulator for superconductors using ultracold atomic gas. By trapping and holding lithium atoms in beams of light, they can observe how electrons would behave in particular types of superconductors.
Physicists at the Naval Research Laboratory and University of Wisconsin-Madison predict that certain silicon surfaces can exhibit intrinsic magnetism, thanks to self-assembly processes. This discovery has the potential to enable single-spin magnetoelectronics, which could revolutionize memory and logic devices.
Carnegie scientists Kenneth Caldeira, Yingwei Fei and Steven Shirey have been elected AGU Fellows for their exceptional contributions to climate science, geological research and Earth sciences. Their work has significantly advanced scientific understanding of the internal structure of Earth and other planets.
Researchers at NIST have discovered that magnetism plays a crucial role in governing the physical properties of iron pnictides, allowing them to superconduct at high temperatures. The team's findings provide strong evidence for the importance of magnetism in understanding iron-based superconductivity.
Scientists at NIST have discovered a new class of iron-based high-temperature superconductors that exhibit unusual behavior under pressure, suggesting a possible alternative mechanism behind superconductivity. The discovery could lead to the development of higher-temperature superconductors with improved properties.
Researchers are developing a new type of memory chip using magnetism instead of electricity, promising faster performance and longer lifespan. This spintronic memory can be written to quickly and won't wear out, making it ideal for reducing power hunger in computers.
Scientists at NIST and partner institutions report strong evidence that magnetic fluctuations enable resistance-free passage of electric current in high-temperature superconductors. The findings should open new avenues of research into the exotic properties of these materials.
Researchers analyzed tiny meteorite grains to determine the formation of aluminum oxide in AGB stars. The study found that both crystalline and amorphous forms are produced, clarifying observations and refining condensation modeling.
Physicists have developed a technique to measure magnetism at the atomic scale using a scanning tunneling microscope, enabling potential applications in futuristic electronic and magnetic devices. This breakthrough could lead to advancements in spintronics, quantum computing, and more powerful hard drives.
Physicists at the University of Illinois have made new measurements that provide information about how different flavors of quarks in a proton generate its magnetic moment. The results suggest that the contribution from the strange quark is significantly positive, contrary to most theoretical models.
The new beam line will provide opportunities for UK scientists to study the properties of magnetic materials that could impact on computers, electric vehicles, and storage media. The instrument generates intense X-rays, allowing for detailed analysis of atomic and magnetic structures.