Articles tagged with Magnets
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Scientists at CU Boulder discovered that zapped magnets exhibit fluid-like behavior, with spins changing orientation like waves in an ocean. This phenomenon occurs after a short laser pulse, leading to the formation of 'droplets' with consistent magnetic properties.
Researchers have discovered new magnets based on more readily available rare earths and some promising magnets without these materials. These findings aim to ease the demand for scarce rare-earth permanent magnets by identifying alternative options.
Functionalised iron oxide particles can attract hydrocarbons, including crude oil and petrol, allowing for easy removal by magnet. The process is environmentally-friendly and can be reused, reducing the impact of contamination on the environment.
At the level of nanoscopic structures made of magnetic layers, researchers at PSI have discovered a special magnetic interaction that enables the development of planar magnetic networks. These interactions allow for the creation of synthetic antiferromagnets and logical gates suitable for constructing computer memories and switches.
Researchers at McMaster University have developed a method to create artificial tumours using magnetic 3D printing, enabling faster and more affordable testing of new treatments. The technique uses magnets to concentrate human cells in a predetermined area, forming 3D cell clusters that mimic human tissues.
Researchers developed particle robotics systems comprising disc-shaped units that can push and pull each other in coordinated movement. The cluster can gravitate toward light sources and transport objects, with particles able to add or subtract without impacting the group.
Researchers created a magnetic liquid metal that can move and stretch both horizontally and vertically without being fully immersed in liquid. The material exhibits high conductivity, low melting point, and deformability, making it suitable for use in soft robotics and flexible electronics.
A pilot study by Johns Hopkins researchers found decreases in GABA and glutamate in people with mild cognitive impairment compared to healthy individuals. The study used strong magnets to measure multiple brain metabolites simultaneously, potentially revealing the earliest changes in brain chemistry associated with dementia.
Physicist Jon Menard's study examines the potential of compact tokamaks with high-temperature superconducting magnets to produce fusion reactions. The findings suggest that lower aspect ratios could improve plasma stability and confinement, but also require new techniques to produce initial plasma current.
Emerging research on topological structures and their potential applications in nanotechnology and nanoelectronics is reviewed in Nature Materials. Topological defects, such as domain walls, can exhibit intrinsic properties and significantly affect material properties.
Researchers at Princeton University observed exotic electronic properties in kagome magnets, including negative magnetism and flat-band electrons. The study used state-of-the-art scanning tunneling microscopy and spectroscopy to explore the behavior of electrons in a kagome-patterned crystal.
Researchers at New York University have discovered a new type of magnet that exhibits unique properties, including sudden transitions and strong coupling with electric currents. This discovery has the potential to enhance data storage technologies and improve performance bottlenecks.
A team of researchers has found a surprising link between emergent magnetism and mechanical pressure in artificially engineered non-magnetic oxide heterostructures. The study reveals that the strength of magnetism can be controlled by applying pressure to the material, opening new routes for developing novel spintronic devices.
Researchers at OIST Graduate University have developed a unified theory explaining the formation of pinch points and half moons in frustrated magnets. The theory reveals that these patterns arise from the same underlying physics, with pinch points representing equilibrium and half moons signifying violation of local conservation laws.
A recent study published in Springer's journal Behavioral Ecology and Sociobiology found that freshwater turtle hatchlings use the sun as their primary navigational cue. When released into a circular field arena with simulated daylight six hours earlier than usual, the turtles shifted their course by approximately 90 degrees.
Scientists are working on a new, powerful magnet design using high-temperature superconductors to build the world's first energy-producing fusion experiment. The goal is to achieve a net energy gain by 2025 and make fusion a viable source of clean energy.
Researchers have discovered a new class of 2D magnetic materials with promising applications in electronics. These ultra-thin layers exhibit unique properties, such as ferromagnetism, antiferromagnetism, and magnetism control, which can be manipulated electrically or optically.
Scientists have created a single-molecule magnet that retains its memory properties above -196°C, paving the way for higher-capacity hard disks. The breakthrough, led by University of Jyväskylä researchers, uses liquid nitrogen instead of liquid helium, making it more affordable and accessible.
Researchers at University of Sussex create breakthrough SMM with blocking temperature above 77 K, overcoming liquid helium temperature barrier. The discovery paves the way for advancements in molecular information storage materials and potentially increases hard disk storage capacity.
A new compact fusion reactor design using high-temperature superconducting magnets can effectively shed excess heat, a longstanding challenge in fusion power plants. This approach makes it possible to open the device's internal chamber and replace critical components.
The Critical Materials Institute has made a breakthrough in printing aligned anisotropic magnets using additive manufacturing. By applying magnetic alignment, researchers were able to improve the magnetic performance of the magnets without using more critical rare earth materials.
Researchers at ORNL demonstrated the reuse of rare earth permanent magnets recovered from used computer hard drives in an electric motor. Additionally, scientists tested radiation effects on human cells using organ-on-a-chip technology and analyzed designer molecules to improve bastnaesite recovery for rare earth elements.
Scientists create six-step cycle that uses magnetic materials to cool down, reducing greenhouse impact of traditional refrigerants. The technology could be more efficient than vapor compression and has potential for widespread use.
The UCSF-Stanford Pediatric Device Consortium will develop new medical devices, including a pneumonia detector and appliances for infants with cleft palate. The grant enables collaboration between geniuses to stimulate innovation in the pediatric device market.
Researchers at Penn State have developed a wearable device that harnesses energy from the swing of an arm while walking or jogging, producing enough power to run a personal health monitoring system. The device is more efficient than standard electromagnetic harvesters and can sustain high strains without cracking.
Researchers have found that a copper-oxide compound's electrical resistance changes linearly with magnetic field strength at low temperatures. This finding supports the idea that high-temperature superconductors may not behave like ordinary metals, and could aid in developing room-temperature superconductors.
Researchers at Oak Ridge National Laboratory discovered that arid environment residents desire water security, which can benefit entire neighborhoods. They also developed 3D printed molds to reduce concrete production time and engineered nanopores with stable edge structures for ultrathin electronics.
Researchers at UConn and UTRC developed 'smart' machine components that alert users to damage and wear using advanced additive manufacturing technology. The components use semisolid metal ink to create conductive silver filament lines that act as wear sensors, detecting damage in real-time.
Physicists at the University of Tokyo have discovered a new method to generate electricity in special materials called Weyl magnets, exploiting temperature gradients. This could lead to the creation of low-power, low-maintenance electronic devices.
EPFL researchers use Scanning Tunneling Microscopy to demonstrate the stability of a holmium single-atom magnet in extreme conditions. They achieve record-breaking coercivity and show that these atoms can withstand high temperatures without demagnetizing.
A new capacitive sensor design created by Binghamton University professor Ron Miles allows for efficient sound sensing in devices without significant electrostatic forces. The flexible sensor can move with small air movements, addressing issues with existing sensors and expanding possibilities for applications.
Researchers develop magnetically activated soft robots with controlled movements, enabling remote control in enclosed spaces. The new technique uses a new type of 3D-printable ink infused with magnetic particles, allowing for fast, forceful, and body-benign movement.
Spin waves transmitted through a magnetic insulator film have the advantage that energy loss is small and long-distance transmission is possible. By studying the influence of stress magnitude on spin waves, researchers found that large stress can transmit spin waves even with weak permanent magnets attached.
Scientists have created an atomically thin magnetic device that can store data at a greater density and with improved energy efficiency. The breakthrough could revolutionize cloud computing and consumer electronics by enabling multi-bit information storage and reducing operation energy.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf developed a method to create and erase magnetic areas in an alloy using lasers, transforming its magnetic behavior. The process involves heating the alloy with ultra-short laser pulses, allowing it to form a magnet.
Researchers have induced magnetism in platinum with an electric field created by a paramagnetic ionic liquid, creating a switchable 2D ferromagnet. This breakthrough could lead to the development of devices that can simultaneously control charge and spin.
Researchers at Cornell University have made a breakthrough in controlling atomically thin magnets using an electric field, opening the door to more powerful and efficient data storage. This technology has the potential to replace current methods that consume electrical power and create heat.
The National High Magnetic Field Laboratory has received a $184 million funding renewal from NSF over five years. The lab provides access to powerful instruments, including the world's strongest magnets, enabling scientists to advance fundamental science and applied research.
Scientists have successfully converted quantum waves into electrical current using an organic-based magnet, paving the way for faster and more efficient electronics. The breakthrough, achieved by researchers at the University of Utah, could lead to new generations of electronic systems that use magnons instead of electrons.
Researchers at ASRC have developed a new light wave-isolation method that ensures highly efficient broad bandwidth isolation without using external magnetic fields or devices. This breakthrough has potential uses in consumer communication systems, laser devices, automotive technology, and more.
An international research team created an ultrathin electronic magnetic sensor that can be worn on skin, enabling a touchless manipulation of virtual and physical objects. The device uses magnetic fields to detect body motion and translate it into the virtual world.
Researchers have developed a new way to magnetise molecules found naturally in the human body, paving the way for low-cost MRI technology. This method could enable doctors to personalize life-saving medical treatments and allow real-time imaging.
Researchers from RIKEN in Japan have discovered a new method to control magnets by manipulating the properties of virtual monopoles. By applying a magnetic field, they can control the behavior of north and south poles in frustrated magnets, leading to a dissipationless current.
Researchers have created a molecule that harnesses the power of unpaired electrons to create permanent magnetism. The 'messenger electron' plays a crucial role in controlling the spins of these electrons, resulting in added strength and durability.
Researchers from RIKEN discovered a way to control the properties of north and south poles in frustrated magnets using monopole currents. The system's conductivity can be controlled by applying magnetic fields, enabling efficient magnetism control with minimal energy loss.
Researchers at Ames Laboratory have discovered a metallic material, CaCo1.86As2, with a perfectly frustrated magnetic state that persists even at low temperatures. This finding offers a new pathway for studying frustrated magnets and their potential applications in quantum computing and high-temperature superconductivity.
Scientists successfully aggregate cells using only magnets without an external matrix, forming a deformable tissue that can be stretched or compressed at will. This breakthrough approach could revolutionize regenerative medicine by providing a powerful tool for biophysical studies and tissue engineering.
Researchers at the Max Planck Institute found a unique state of matter in CeRhIn5, a superconducting crystal, where electrons unite to flow in the same direction. This 'electronic nematicity' state is a rare phenomenon between liquid and crystal, and its relationship with superconductivity is still being explored.
A new device using magnetic compression has been shown to be safe and easy for surgeons to use, offering a faster alternative to traditional suturing or stapling methods. The device was tested in a proof-of-concept clinical trial involving patients with complicated surgical reconstructions.
Researchers at Louisiana State University and Tulane University have observed topological behavior in a magnet, Sr1-yMn1-zSb2, which displays nearly massless electronic charge carriers. This discovery holds promise for novel device concepts with reduced power consumption and heat production.
Researchers investigated the surface states and bulk material of topological insulators, finding that a considerable part of charge transport occurred in the bulk phase, not just at the surface. The imperfect crystal structure was found to be the reason for this, with freely moving electrons generating electric current in the bulk.
Researchers found a localized glow near the cathode surface due to enhanced ionization and electron confinement in the magnetic field. Increasing the magnetic field strength revealed a transition from order to chaos via a period-doubling route.
The Cornell-Brookhaven ERL Test Accelerator, CBETA, combines two energy-saving technologies: energy recovery and permanent magnets. This innovation could lead to higher luminosity in colliding-beam experiments and produce brighter, more coherent radiation.
Researchers at University College London and Oxford have developed magnetic implants to control eye movement, improving symptoms of nystagmus for the first time. The study, published in Ophthalmology, shows that the implants can correct oscillopsia and improve visual acuity.
Assemblies of metallic nanoparticles behave like bulk magnets, displaying intriguing shape-dependent behavior that could improve high-density information storage technologies. The structures' magnetic behavior is influenced only by the shape of the assemblies, revealing a single bulk ferromagnet.
A new technique uses magnetic nanoparticles to separate oil from water through electrostatic force and a magnet, showing promise for improving water treatment in oil and gas production. The researchers believe their method could also be used to treat millions of gallons of fresh water and clean drinking water.
Researchers at Oak Ridge National Laboratory have developed a new approach to locate oil and gas in shale, reducing production time and cost. Additionally, the team has discovered a link between electrochemistry and ferroelectricity, enabling new materials for electronics and energy applications.
The Muon g-2 experiment at Fermilab is searching for phantom particles that could rewrite scientists' picture of the universe. The experiment uses a world-famous electromagnet to measure muon particles in a precise magnetic field.
For the first time, researchers have measured the force that draws tiny crystals together and visualized how they swivel and align. The van der Waals forces provide insights into how crystals self-assemble in nature.
Researchers at Duke University have created two new magnetic materials using high-throughput computational models. The success marks a new era for the large-scale design of new magnetic materials, with potential applications in motors, MRI machines and beyond.