Articles tagged with Magnetic Fields
Researchers at NIFS and Kyushu University have discovered a new mechanism that stops plasma flow when the magnetic flux surface is disturbed. This observation is significant for nuclear fusion research and has implications for understanding plasma behavior in the universe.
Scientists have discovered a nearly-annual cycle of solar activity that can drive space weather events, including solar storms at Earth. This discovery could improve forecasts of space weather by understanding the interaction between magnetic field bands on the sun.
Researchers investigated the influence of low-frequency magnetic fields on neurodegenerative diseases, including Alzheimer's disease and amyotrophic lateral sclerosis (ALS). The study found that exposure to these fields did not accelerate disease development or affect learning behavior in relevant mouse models.
Scientists at Niels Bohr Institute create novel sensor using entangled atoms to precisely measure tiny magnetic fields, enabling new insights into biology and medicine. The researchers employ a unique technique involving laser light and quantum uncertainty relations to overcome classical physics limitations.
Researchers expose high-temperature superconductors to record-breaking magnetic fields, revealing unique properties and interactions between electrons. The study paves the way for a new theory of superconductivity, aiming to create room-temperature superconductors without cooling requirements.
Researchers at Ohio State University have discovered a way to control heat with magnetic fields, using acoustic phonons to steer heat magnetically. This breakthrough opens up new possibilities for energy manipulation, potentially allowing for the control of sound waves as well.
Physicists remotely control magnetic molecules spinning like tops using circularly polarised magnetic field changes. Theoretical findings by Iosif Davidovich Tokman and Vera Il'nichna Pozdnyakova may lead to designing rotating magnetic molecule rotors for powering molecular motors.
Researchers at the University of Utah have uncovered the secrets behind hybrid perovskite solar cell performance, enabling rapid testing using magnetic fields. The study confirms a new mechanism that explains the material's high efficiency, shedding light on its behavior and potential for optimization.
Researchers from General Atomics and Princeton Plasma Physics Laboratory made a major breakthrough in controlling heat bursts in fusion reactors. They found that tiny magnetic fields can create two distinct responses, allowing more heat to leak out and preventing intense heat bursts.
Researchers at MIT have developed a method to stimulate brain tissue using external magnetic fields and injected magnetic nanoparticles. The approach can provide an implant-free means of providing brain stimulation and mapping, potentially treating neurological diseases such as Parkinson's disease.
Scientists confirm an underground saltwater ocean on Ganymede, estimated to be 60 miles thick and buried under a 95-mile crust of ice. This discovery could open up possibilities for life beyond Earth and is made possible by the unique capabilities of NASA's Hubble Space Telescope.
Dartmouth College researchers create a new class of flower-shaped magnetic nanoparticles that heat at low field strengths, showing improved performance compared to commercially available counterparts. This breakthrough could enable treatment of deep-seated tumors like pancreatic cancer.
Scientists discover that the sun's magnetic field controls the large-scale shape of the heliosphere, producing two jets that split its tail, similar to astrophysical jets observed in other stars and black holes. The discovery could lead to better understanding of particle acceleration, cosmic rays, and space travel protection.
Researchers propose a new model showing the sun's magnetic field controls the shape of the heliosphere by accelerating solar wind into two jets. This understanding could have implications for future space travel and help us comprehend the filter protecting the solar system from galactic cosmic rays.
Researchers have discovered tiny magnetic particles in meteorites that retain a faithful record of the magnetic fields generated by their parent bodies. By analyzing these particles, scientists were able to reconstruct the history of magnetic activity on the meteorite parent body and capture the moment when the core finished solidifying.
Researchers have derived a new set of equations that allows for calculating electron paramagnetic resonance transition probabilities with arbitrary alignment and polarization. This progress is relevant for a broad community of EPR users and has been demonstrated with a newly designed THz-EPR experiment at HZB's storage ring BESSY II.
Researchers at Rockefeller University have successfully used electromagnetic waves to remotely control insulin production in diabetic mice, opening up new possibilities for treating diseases. The system, dubbed radiogenetics, uses a natural iron storage particle and heat-activated ion channel to trigger gene expression in cells.
A recent study by the University of Manchester has investigated the effects of weak magnetic fields on human proteins, including those crucial for health. The research found no detectable impact on key proteins, suggesting that power lines and other electrical devices may be safer than previously thought.
Scientists at HZDR have discovered a seemingly paradoxical phenomenon in graphene when exposed to a magnetic field and laser light pulses. The electrons' energy levels behave unexpectedly due to collisions, causing an unusual rearrangement of the material's state.
A team of researchers has provided evidence that the early solar system's protoplanetary disk was shaped by an intense magnetic field, driving gas toward the sun at a rapid rate. The study analyzed a meteorite sample, extracting individual grains and measuring their magnetic orientations to determine the original magnetic field.
Researchers used powerful lasers to create colliding jets of plasma, mimicking cosmic explosions and planetary cores. They also recreated a tiny laboratory version of solar flares and stellar explosions, creating a gigantic plasma tsunami in space.
Researchers at Brown University have discovered an exotic superconducting state that can arise when a superconductor is exposed to a strong magnetic field. The team found that unpaired, spin-up electrons form Andreev bound states, enabling transport of supercurrents through non-superconducting regions.
Researchers at Bielefeld University and colleagues successfully cooled to minus 272.15 degrees Celsius using magnetic molecules, surpassing absolute zero. The discovery could provide an alternative to helium-based refrigerants and has implications for various applications such as transparent magnets and nano data memoires.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf successfully tested a new model explaining how magnetic fields create astrophysical jets in young stars. The findings suggest that magnetic fields can focus plasma to form jets, potentially leading to breakthroughs in cancer therapy and medical engineering.
Researchers from around the world have successfully explained the formation and propagation of stellar jets emitted by young stars. The team used a patented experimental device and numerical simulations to demonstrate that interstellar magnetic fields play a key role in confining these jets, which can travel vast distances.
Scientists at LMU München have synthesized a ferromagnetic superconducting compound that exhibits both properties simultaneously. The new compound, (Li,Fe)OH(FeSe), can coexist with ferromagnetism and superconductivity even at higher temperatures than previously known.
Scientists discovered a new material, WTe2, exhibiting unlimited growth in magnetoresistance when exposed to strong magnetic fields. This phenomenon could be useful for detecting magnetic fields in scanners.
The University of Washington's fusion reactor design has the potential to produce economical fusion power, rivaling costs for new coal-fired plants with similar electrical output. The dynomak reactor uses a magnetic field within a closed space to hold plasma in place, allowing for continuous heating and electricity generation.
New modeling studies show most stars were formed from unstable protostar clusters that broke up, leaving behind single or binary stars. These clusters, however, rarely form stable multi-star systems, instead ejecting stars to achieve stability.
Researchers at Sandia National Laboratories have produced a trillion fusion neutrons using the MagLIF technique, which uses magnetic fields and a laser to preheat hydrogen fuel. The achievement demonstrates the viability of this novel approach for achieving break-even fusion.
Physicists at the University of Utah have developed a method to control electrical current in a cheap, plastic LED using nuclear spins. They achieved this at room temperature without strong magnetic fields, bringing the study closer to practical machines that work spintronically.
New observations from NASA's Venus Express mission show giant holes in Venus' ionosphere, suggesting a more complex magnetic environment. The findings provide additional clues to understanding Venus' atmosphere and its interactions with the solar wind.
Scientists at PPPL identified how magnetic reconnection transforms magnetic energy into particle energy, with 50% conversion rate. The process involves electron energization and creation of electrically charged field that powers ions.
Researchers have successfully visualized the effects of transcranial magnetic stimulation (TMS) on neurons in real-time using voltage-sensitive dyes. The high-resolution imaging data may lead to optimized TMS parameters and learning processes for treating neurological diseases.
Brightpoints provide a new way to track magnetic field evolution and material flow inside the sun. Researchers found that bands of these markers moved steadily toward the equator over time, along the same path as sunspots.
Researchers studied a unique solar storm that interacted with Earth's magnetic field, revealing the presence of a dense solar filament material. The event showed a complex interplay between the CME and the magnetosphere, resulting in reduced magnetic effects.
Researchers directly observe free-electron Landau states for the first time, revealing complex rotational dynamics that differ from classical predictions. The findings suggest that electron behavior in magnetic fields is more intricate than previously thought.
Researchers have developed an elastic material coated with microscopic, hairlike structures that tilt in response to a magnetic field. The microhairs can direct water upward and even control the flow of light.
Scientists at the Joint Quantum Institute have successfully demonstrated on-chip topological light, showcasing a robust and consistent method for photonic signal processing. The breakthrough enables the development of microscale delay lines with low energy loss, opening up new possibilities for quantum information processing.
Researchers at Chapman University and Vienna University of Technology successfully separated a neutron from its magnetic field, defying classical notions of particle properties. The experiment utilized neutron interferometry to isolate the particle's spin from its direction of motion.
Researchers at Vienna University of Technology demonstrate a new quantum paradox where neutrons can be separated from their properties, allowing for more precise measurements. This 'Quantum Cheshire Cat' phenomenon shows that particles can exist in multiple states at once, making it ideal for applications requiring high precision.
Astronomers have observed a unique transformation of a binary system containing a rapidly spinning neutron star. The system, known as AY Sextantis, underwent a dramatic change in behavior, with the pulsar's radio beacon vanishing and its gamma-ray emission increasing fivefold.
Researchers from Cambridge University have broken a world record by trapping a strong magnetic field in a high-temperature superconductor. The achievement demonstrates the potential of these materials for various applications, including energy storage and transportation systems.
A NASA model can predict and visualize the interaction between solar wind, solar radiation, and asteroid surfaces in unprecedented detail. The model adapts to complex activities and provides highly efficient simulations, potentially identifying hazards for human explorers.
The magnetic hose, made of a ferromagnetic cylinder covered by a superconductor material, efficiently transports magnetic fields. The device has potential applications in quantum computing, enabling individual control over quantum systems.
Researchers developed a new measurement system that uses the spatial variation of magnetic fields to accurately measure positions of ferromagnetic objects, enabling non-contacting measurements over large distances. The system can be used in industrial machinery and even predict imminent collisions between cars.
Researchers have discovered a new concept for particle separation, leveraging horizontal levitation of non-magnetic particles in a magnetic field. The technique exploits differences in density and magnetic susceptibility to separate glass and pyrite particles.
Researchers have developed a system to track footballs in three-dimensional space using low-frequency magnetic fields. This technology can improve accuracy for referees and viewers, especially in situations where the ball is blocked from view or visibility is low.
Researchers have developed a novel approach to magnetic cooling, utilizing solid magnetic substances as refrigerants in miniaturized magnetic refrigerators. The technology is more efficient and 'green' than traditional fluid-compression refrigeration, with potential applications in domestic and industrial settings.
A new study reveals magnetic fields near supermassive black holes can match the force of their gravitational pull, affecting gas dynamics and outflows. Magnetic field strengths are comparable to those produced by MRI machines.
Multi-wavelength observations of sunspots have provided new insights into their complex and dynamic nature. The data revealed rapidly rotating plasma rolls, powerful shocks, and widespread plasma eruptions driven by solar-energy flux and controlled by intense magnetic fields.
Researchers at New Jersey Institute of Technology have made a groundbreaking discovery about the structure and activity of the Sun. They found that buoyant magnetic-flux ropes on the solar surface can trigger powerful plasma eruptions in the atmosphere, leading to intense heating and rapid acceleration of plasma.
Researchers have developed sperm-inspired microrobots that can be controlled by oscillating weak magnetic fields, enabling applications such as targeted drug delivery and in vitro fertilization. The robots consist of a head coated in a thick cobalt-nickel layer and an uncoated tail, propelled forward by magnetic torque.
Researchers used high-powered lasers to create table-top supernovae, recreating the explosive events that occur when stars reignite or collapse. The experiments revealed irregular 'knotty' features and intense radio and X-ray emissions, confirming a theory about the interaction between magnetic fields and interstellar material.
A team of researchers has successfully replicated the amplification of cosmic magnetic fields in a laboratory experiment, using supercomputer simulations and high-powered laser beams. The findings provide insight into the origins of magnetic fields in interstellar space.
University of Leicester researchers captured stunning images of Saturn's auroras, providing evidence for the theory that Saturn's magnetic tail collapse causes auroral displays. The findings support a similar process on Earth.
Researchers found that the magnetic field of a neutron star takes on a stable structure and evolution slows down, challenging previous theoretical models. The discovery could help scientists measure neutron star properties and gain insights into matter at extreme densities.
A team of researchers has discovered that the afterglow from a gamma-ray burst behaves differently than expected, with 10,000 times more circularly polarised light detected. The findings provide new insights into the extreme properties of matter under shockwave conditions.
A team of physicists has identified a universal law governing the magnetic properties of metamagnets, which could lead to more efficient refrigerators, heat pumps, and airport scanners. The non-linear property enables cycling of magnetism on and off, allowing for efficient cooling and pumping of heat.
Researchers have developed an analytical approximation to study SQUID dynamics, enabling faster computation and evaluation of sensitivity in magnetometers. The technique, used for low-noise amplifiers and antennas, reduces simulation time to practically zero.