Articles tagged with Magnets
Researchers successfully controlled spin waves by using a superconducting electrode, which acts as a mirror to reflect the magnetic field back to the spin wave. This breakthrough offers an energy-efficient alternative to electronics and opens doors for designing new circuits based on spin waves and superconductors.
Using magnets, scientists have found a way to align muscle fibers in tissue, allowing for the development of model tissues and potential therapies for muscle injuries or diseases. The method, which involves mechanically stimulating muscle cells with magnetic forces, shows promise for understanding muscle growth and function.
Research finds socioeconomic disparities in high-powered magnet ingestion, with lower-income children requiring more extensive treatment. Despite adult supervision and awareness of dangers, kids still swallow magnets, highlighting the need for improved safety measures.
Researchers have discovered a rare electronic state in five-layer graphene, exhibiting both unconventional magnetism and ferro-valleytricity. This multiferroic state could enable ultra-low-power, high-capacity data storage devices for classical and quantum computers.
A WVU researcher is developing new methods to fast-track the discovery of quantum materials, which could lead to breakthroughs in fields like quantum computing and superconductors. The goal is to streamline the discovery process using computational and experimental tools.
Lehigh University researchers have discovered that applying magnetic forces to individual 'microroller' particles can spur collective motion, allowing the grains to flow uphill, up walls, and climb stairs. This counterintuitive phenomenon has potential applications in mixing, segregating materials, and microrobotics.
Researchers at Brown University have made significant breakthroughs in understanding quantum spin liquids by studying the effects of disorder on these exotic materials. The study reveals that disorder does not destroy or mimic the quantum liquid state but rather significantly alters it.
A team of scientists from Ames National Laboratory developed a new machine learning model that predicts Curie temperatures of new material combinations. This breakthrough discovery is crucial for designing high-performance magnets with reduced critical materials.
Scientists at NIFS have created a stable and strong High-Temperature Superconducting (HTS) large-current conductor, named STARS, that can be applied to fusion reactors. The new conductor overcomes challenges in twisting and transposing thin wires, achieving higher current densities than Low-Temperature Superconductors.
Researchers have created a new type of conducting polymer with a helically grown structure, which can emit circularly polarized light. The polymer's radicals are arranged in a helical shape and can be aligned into stripe-like structures when exposed to a magnetic field.
Researchers at Tohoku University and MIT have unveiled the anomalous dynamics of non-collinear antiferromagnets, revealing a unique interaction between electron spins and chiral-spin structure. The findings provide essential insights for controlling these materials, which could lead to the development of functional devices in spintronics.
A team of chemists at UC Riverside has discovered that the distribution of a magnetic field is itself chiral, allowing for the rapid formation of chiral structures. This method has potential applications in sensing and anti-counterfeit technology, such as detecting chiral or achiral molecules linked to certain diseases.
A Rensselaer researcher has used artificial intelligence to discover novel van der Waals (vdW) magnets with large magnetic moments. These two-dimensional vdW magnets have the potential to advance science and technology in data storage, spintronics, and quantum computing.
Researchers have discovered a new phase of liquid magnetism in layered helical magnets, where magnetic dipoles behave like 'flattened puddles' with varying alignment between layers. This phenomenon, predicted by a computational model, may explain the unusual electronic behavior observed in these materials.
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 have developed a proof of concept for a superconducting highway that can transport vehicles and electricity, leveraging liquid hydrogen cooling to address the challenge of low-temperature superconductor operation. The system enables speeds of at least 400 miles per hour and integrates multiple uses, making it more affordable.
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 UIUC use 4D-STEM to resolve magnetic behavior on angstrom scale, breaking record for atomic resolution. They achieve this by combining electron microscopy with simulations using software package Magnstem.
Researchers at Texas A&M University have identified a new circuit element called the meminductor, which exhibits memory-like properties. The discovery was made using a two-terminal passive system and proved the existence of meminductance in an inductor circuit element.
Researchers at Kyoto University have successfully created stable plasmas using microwaves, a key step towards harnessing nuclear fusion's massive energy potential. The team identified three crucial steps in plasma production and used Heliotron J to generate the dense plasmas.
Scientists at the University of Missouri have developed a novel method to detect food adulteration using nuclear magnetic resonance (NMR) spectroscopy. The technique can identify vegetable oil adulterants in hard cheese products with high accuracy, leading to improved consumer safety and product authenticity.
A South Korean research team has successfully searched for Dine-Fischler-Srednicki-Zhitnitskii (DFSZ) axion dark matter using a new experimental setup. The group achieved a higher sensitivity than existing experiments, excluding axion dark matter around 4.55 µeV at DFSZ sensitivity.
Researchers report the discovery of photonic hopfions, a new family of 3D topological solitons with freely tunable textures and numbers. These structures exhibit robust topological protection, making them suitable for applications in optical communications, quantum technologies, and metrology.
Researchers use coherent correlation imaging to image the evolution of magnetic domains in time and space without prior knowledge. The study reveals thermal motion and pinning effects on domain boundaries, unlocking new insights into magnetism's microcosm.
Researchers at Argonne National Laboratory develop a new method to create crystalline materials with two or more elements, yielding previously unknown compounds with exotic properties. The discovery has potential applications in superconductors, energy transmission, high-speed transportation, and energy-efficient microelectronics.
A new geometrical-shaped magnet structure enables deep brain stimulation to reach 11 centimeters below the scalp, 1.67 times deeper than conventional methods. This improved design offers more focused stimulation and increased treatment potential for psychiatric diseases like major depression.
Scientists at Argonne National Laboratory have discovered tiny magnetic vortices called skyrmions that could store data in computers, promising 100-1000 times better energy efficiency than current memory. The team used AI and a high-power electron microscope to visualize and study the behavior of these micro-scale magnetic structures.
Researchers developed a new method to manufacture manganese bismuth (MnBi) magnets using microstructure engineering. The process resulted in increased coercivity and reduced magnetization, making it suitable for high-power permanent magnets.
Physicists have observed novel quantum effects in a topological insulator at room temperature, opening up new possibilities for efficient quantum technologies. This breakthrough uses bismuth-based topological materials to bypass the need for ultra-low temperatures.
MIT researchers have developed a magnet-based system to track muscle length during movement, which could improve the accuracy of prosthetic limb control. The system uses small magnets implanted in muscle and measures distances between them using a credit-card-sized sensor.
Scientists have found a way to produce high-performance magnets without rare earth elements, using the 'cosmic magnet' tetrataenite. The discovery could reduce reliance on China's dominant rare earth supply, supporting low-carbon technologies.
Scientists have successfully printed thin, one-millimeter-thick permanent magnets using selective laser sintering, retaining suitable characteristics for industrial use. This breakthrough enables complex magnet configurations necessary for pacemakers and minimizes production waste.
A recent review article summarizes the latest developments in finite-control-set model predictive control (FCS-MPC) strategies for PMSMs. FCS-MPC is a promising approach to optimize drive systems, but challenges remain, including computational complexity and parameter uncertainty.
Researchers improved the Kitaev spin liquid model by freezing electrons in space, allowing only spin contributions at low temperatures. The study successfully explained experimental data and predicted a topological phase in the presence of an external magnetic field.
Researchers at UT Austin fabricated a new type of electrode using magnets to create vertical alignment, enabling faster charging and potentially doubling range on single charge. The vertically assembled nanosheet networks show superior electrochemical performance due to high mechanical strength and electrical conductivity.
Researchers at NUS have developed a method to produce cell-based meat using magnetic pulses, reducing reliance on animal products and increasing efficiency. This technology has the potential to revolutionize the food industry and improve regenerative medicine by stimulating the growth of healthy cells.
CCNY researchers have successfully created a new type of magnetic quasiparticle by combining light with two-dimensional magnets. This achievement could lead to the development of materials that interact strongly with light, enabling applications in lasers and digital data storage.
Researchers at Johannes Gutenberg University Mainz have developed a new method for detecting alcohols using zero- to ultralow-field nuclear magnetic resonance (NMR) combined with the SABRE-Relay hyperpolarization technique. This innovative approach enables measurements without strong magnetic fields, reducing device size and potential ...
Researchers at Princeton Plasma Physics Laboratory have successfully applied boron powder to tungsten components in tokamaks, improving plasma confinement and reducing the risk of edge-localized modes. The innovative approach uses a PPPL-developed powder dropper to deposit boron coatings while minimizing disruptions to the magnetic field.
Researchers create a mathematical framework for probabilistic computing using magnetic tunnel junctions, which can infer potential answers from complex input. This technology could revolutionize data interpretation and pattern recognition.
Researchers at the University of Virginia School of Medicine have successfully engineered a material that can conduct electricity with zero resistance, paving the way for revolutionary technologies. The breakthrough uses DNA to guide chemical reactions, overcoming a long-standing challenge in materials science.
Researchers from Shibaura Institute of Technology have developed a novel low-cost method for refining boron using ultrasonication, resulting in 95% pure MgB2 superconductors with improved magnetic properties. This breakthrough could make cheap superconductors a reality soon.
A team of researchers from Cornell University has developed a deformable pump for soft robots, mimicking the human heart's functionality. The pump uses hydrodynamic and magnetic forces to provide soft robots with a circulatory system, allowing them to store energy and power their movements more efficiently.
Physicists observe unique behavior in neodymium material when heated, where magnetic spins form a static pattern; this phenomenon is counterintuitive and rare in nature. The discovery may lead to new information storage or computational concepts.
A new study uses finite element simulation to optimize energy harvesting from vibrating micromagnets for wireless sensor networks in the Internet of Things. The research aims to provide a sustainable micro-energy source for the ubiquitous sensors, reducing the need for battery replacements or recharging.
Researchers at Boston College have discovered a new particle known as the axial Higgs mode, a magnetic relative of the mass-defining Higgs Boson particle. The detection was made possible by using light scattering and quantum simulator techniques in a tabletop experiment at room temperature.
Researchers at Princeton University have discovered that electrons in a crystal exhibit linked and knotted quantum twists, raising questions about the quantum properties of electronic systems. The study brings together ideas in condensed matter physics, topology, and knot theory to create a new understanding of quantum mechanics.
Scientists have developed a new method of recording data using light on silicon waveguides, enabling non-volatile and high-performance magneto-optical memories. This breakthrough could lead to all-optical alternatives in telecommunications infrastructure and applications in optical computing.
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 have developed a method using nanomagnets to perform artificial intelligence, slashing energy costs and offering huge efficiency gains. The technology uses 'nanomagnetic states' to process and store data, cutting out the need for software simulation.
Researchers have designed simpler magnets for twisty stellarator facilities, which could aid the development of a stellarator power plant. The new magnets have straighter sections than before while preserving their strength and accuracy.
Researchers at Hebrew University have discovered a new magnetic phenomenon called edge magnetism, where materials only retain magnetism on their edge. This discovery could revolutionize the production of spintronics devices, enabling the creation of ultra-thin wire magnets with curved shapes.
A team of US and Chinese researchers has directly measured how individual electronic quantum states in a kagome magnet respond to external magnetic fields, shifting energy in an unusual manner. They found that Dirac fermions exhibit momentum-dependent shifts under the applied field.
A team of engineers and scientists has developed a proof-of-concept for a magnetic tentacle robot that can navigate the narrow tubes of the lung, enabling doctors to take tissue samples or deliver cancer therapy. The device measures just 2 millimeters in diameter and uses an autonomous magnetic guidance system to guide it into place.
Scientists have achieved efficient quantum coupling between two distant magnetic devices, which can host magnons and exchange energy and information. This achievement may be useful for creating new quantum information technology devices.
Researchers tested the magnetic field output of various portable electronic devices and found that strong magnets can disrupt the operation of implanted pacemakers or ICDs. The recommended safety distance varies between 0.8 cm for some devices, highlighting the need for awareness among cardiac patients.
Researchers at Goethe University Frankfurt have grown crystals with rare-earth atoms that exhibit surprising fast magnetic properties. The team found that the strength of these reactions can be adjusted by choosing different atoms, opening up possibilities for optimizing spintronics components.
Researchers at UCL have created a technique called magnetomechanical stimulation that uses microscopic magnetic particles to control touch-sensitive brain glial cells. This allows for precise and remote activation of astrocytes, providing a new tool for understanding their function and potential treatment of neurological disorders.
Researchers discovered a novel type of magnet, the antiferromagnetic excitonic insulator, which involves strong magnetic attraction between electrons in a layered material. The new state emerges when electrons form bound pairs with holes and trigger an antiferromagnetic alignment of adjacent electron spins.
A new study by Tel Aviv University researchers found that microplastics absorb and concentrate toxic organic substances, increasing their toxicity by a factor of 10. This may lead to severe impact on human health due to contaminated food and drink.