Articles tagged with Magnetic Fields
Researchers have identified unusual regime of quantum oscillations in a three-dimensional topological insulator, deviating from conventional theory. The study shows that electrons in zirconium pentatelluride exhibit behavior indicating a topological origin rather than many-body interactions.
A team of researchers from Kyushu University and Max Planck Institute for Extraterrestrial Physics have detected ambipolar diffusion in a prestellar core, weakening magnetic support and leading to gravitational collapse. This finding provides insight into early star formation and the creation of stellar systems like our own.
Researchers demonstrate reversible switching of helimagnetic order by manipulating the polarity of an electric current under an applied magnetic field. The study provides a principle for controlling complex magnetic order using electric currents, advancing fundamental understanding of helimagnets.
A team of researchers from Science Tokyo has developed a new method to reversibly switch the chirality of semiconductor materials using electrochemistry. This innovation enables the creation of spin-polarized currents in layered non-chiral semiconductors, opening up new directions for developing ultrafast and energy-efficient devices.
Astronomers have discovered a new millisecond pulsar named PSR J1810−0623, featuring an exceptionally circular orbit. This discovery provides valuable information about binary evolution processes and the Galactic magnetic field structure.
Researchers measured wind speeds on seven hot, Jupiter-like exoplanets and found that magnetic fields govern the winds. The team's findings provide the strongest evidence yet of magnetism on planets outside our Solar System.
Researchers found strong magnetic fields on ultra-hot Jupiters, similar to those in our Solar System. The presence of these fields could affect planetary climates and potentially create dramatic aurorae displays.
Researchers propose a new way to detect altermagnets, a recently discovered class of magnetic materials that could revolutionize information transport and storage. The quantum sensor would measure the relaxation of a tiny magnetic defect in a diamond to identify altermagnetism.
Researchers at Kyushu University used 3D computer simulations to understand the physics behind hub-and-spoke patterns in star-forming regions. The study shows that oblique shocks create invisible channels guiding compressed gas into central filaments, forming the radial shape of baby stars' cradles.
A new study reveals that magnetic fields can shape the behavior of biological molecules, influencing their chirality and interaction with electron spin. This discovery could help explain how chemical processes operate in biological systems and may offer new insights into the origins of life.
Researchers from HZDR have successfully analyzed lanthanum superhydrides under extreme pressure, providing direct insights into their atomic properties. The study employed nuclear magnetic resonance spectroscopy and magnetic superlenses to focus high-frequency fields within the sample volume.
Researchers from ISTA have explained the unusual superconducting behavior of UTe2, a material that exhibits zero electrical resistance under specific magnetic field conditions. By studying magnetic fluctuations, they revealed a new mechanism behind reentrant superconductivity, shedding light on this enigmatic phenomenon.
Astronomers using astroseismology have found that massive stars' rotation rates decrease with age, but a new study suggests this may not be the case. The research team used 3D simulations to investigate how magnetic fields affect rotation inside massive stars, revealing that some configurations can spin the core up.
Researchers found that a spherical-shell dynamo can exist in two stable equilibrium states, with tiny initial fluctuations determining the polarity. The study suggests that breaking this stable state is necessary to trigger magnetic reversals, possibly through mechanisms outside magnetohydrodynamic theory.
Researchers at DTU have developed a new magnetic material that features a stable internal magnetic structure and almost no external magnetic field, above room temperature. This could enable faster components and lower energy consumption in spintronics.
A University of Tokyo team developed a fluorescence imaging method to track short-lived molecular intermediates and their magnetic responses in real time. The approach isolates spin-dependent part of chemistry, revealing how magnetically sensitive intermediates appear and disappear.
Researchers at IISc created a method to precisely steer quantum sensors through living cells, overcame challenges like viscous drag and brownian motion. This breakthrough enables real-time measurement of parameters such as local viscosity and temperature inside cells.
Researchers at NJIT analyzed nearly three decades of solar oscillation data to trace the Sun's magnetic engine, revealing a butterfly-shaped flow pattern in the deep solar interior. The findings point to the likely location of the star's magnetic engine deep beneath its surface, roughly 200,000 kilometers down.
Researchers at Nagoya University found that magnetic fields keep the equator spinning faster than the poles in stars, preventing a rotation flip even as they slow down with age. This contradicts 45 years of theoretical predictions and could help scientists solve stellar mysteries.
A study suggests that moths integrate geomagnetic and visual cues to orient themselves during seasonal migration. The research found that visual cues are indispensable for accurate migratory orientation in the fall armyworm species.
Researchers develop novel method to manipulate cell structures using weak magnetic fields and isotopes, bridging structural biology, biophysics, and quantum biology. This work offers a potential new strategy for stabilizing damaged brain proteins, typical of neurodegenerative diseases.
A University of Arizona-led research team has measured the dynamics and ever-changing hot gas shell from where the solar wind originates. The study helps scientists answer fundamental questions about energy and matter moving through the heliosphere, affecting space weather events and planetary orbits.
A team of scientists at the University of Wisconsin-Madison has identified a new mechanism to describe the generation of large-scale magnetic fields. They found that steady velocity gradients are key to creating ordered, large-scale field structures, resolving a long-standing issue in understanding how these fields are generated.
Researchers have created a design framework for magnetic cloaks that can protect sensitive electronics and sensors from magnetic interference. The new concept enables shielding of components in fusion reactors, medical imaging systems, and isolating quantum sensors.
A SwRI-led study finds that quasi-periodic pulsations (QPPs) in solar flares are driven by dynamic oscillations in magnetic reconnection. This research could help refine traditional solar flare models, providing new insights into the mechanisms driving space weather.
Researchers used historical geography to accurately measure Earth's rotation speed during a total solar eclipse in 709 BCE, providing new data about the Sun's activity. The study also supports recent solar cycle reconstructions and independently validates previous findings using radiocarbon analysis.
Researchers have developed magnetic carbon adsorbents made from flax shives and eucalyptus sawdust to effectively remove toxic chemicals like pentachlorophenol from water. The materials demonstrated outstanding performance in removing up to 95% of PCP, showing excellent stability and minimal loss of performance.
Researchers develop novel dual-laser method to create adaptive, shape-locking devices. The material integrates a shape-memory polymer skeleton with magnetic microcapsules, allowing for 'writing' and 'bending' of instructions and shapes in situ.
A macroscopic device has been designed to reduce eddy-current damping, allowing for precise measurements of physical phenomena like gravity. The system uses a graphite disk and rare earth magnets, enabling ultra-precise sensors that can be used in classical and quantum physics research.
The SwRI-built Solar Wind Plasma Sensor (SWiPS) and Space Weather Follow-On Magnetometer (SWFO-MAG) will capture real-time data on solar wind and magnetic field changes to monitor space weather phenomena. This data will support NOAA's Space Weather Prediction Center and help predict potential impacts on Earth's magnetic field.
Scientists have developed a method to generate pseudomagnetic fields inside photonic crystals, allowing for arbitrary control of light flow. This technique enables high-speed data transmission and opens new possibilities for optical communications and quantum technologies.
A recent study published in Nature Astronomy confirmed decades-old theoretical models of magnetic reconnection in the solar corona, using data from NASA's Parker Solar Probe. The research provides new insights into the process that drives solar flares and coronal mass ejections, which can impact technology on Earth.
Researchers used large-scale simulations to reproduce near-Earth space environment, confirming opposite charge polarities between regions. Plasma motion explains the reversal in equatorial plane.
Researchers have made a significant breakthrough in controlling ultrafast spin dynamics by accelerating demagnetization speed with external magnetic fields. This discovery opens up new avenues for designing multifunctional spintronic devices with field-programmable operations.
Researchers mapped the angular dependence of a high-field superconducting state in UTe2, revealing a toroidal halo surrounding a specific crystalline axis. A theoretical model developed by Andriy Nevidomskyy successfully reproduced the nonmonotonic behavior, attributing it to Cooper pairs carrying intrinsic angular momentum
Researchers at Kyoto University have developed a new method to strengthen the brightness of single-photon light sources using magnetism. By introducing defects into a two-dimensional semiconductor, they were able to enhance the emission intensity even under weak magnetic fields.
New experimental techniques can measure intense magnetic fields generated in heavy-ion collisions, shedding light on fundamental physics and the early universe. By studying magnetic field evolution over time, researchers can gain insights into QGP behavior and its effects on particles.
The TRACERS mission will explore dynamic interactions between the Sun's and Earth's magnetic fields. By observing particles and fields in the northern magnetic cusp region, researchers can study how magnetic reconnection affects the space environment.
In a groundbreaking study, researchers discovered that strong magnetic fields can reverse the overall direction of angular momentum in magnetovortical matter. This finding challenges established theories and highlights the previously underestimated role of orbital motion in certain regimes.
Astronomers detect first-ever evidence of a 'planet with a death wish' as HIP 67522 b orbits extremely close to its host star, triggering flares that erode the planet's atmosphere. The radiation is so intense it causes the planet to shrink and lose mass at an alarming rate.
Researchers have discovered atacamite, a mineral with unusual magnetic properties, which exhibits magnetocaloric behavior at low temperatures. The material's strong cooling effect has sparked interest in its potential use for energy-efficient cooling and liquefaction of gases.
Researchers developed a novel CrTe2/NbSe2 heterostructure to create stable, controllable interfaces between magnetic and superconducting materials. The structure forms stripe-like patterns hosting localized magnetic moments, enabling topological quantum computing applications.
Researchers at Kyoto University have created a new artificial heterostructure device that mimics broken spatial and time-reversal symmetry, enabling new bulk photovoltaic effects. The device shows promise for next-generation solar cells with improved efficiency and multifunctionality.
Physicists have developed innovative permanent magnet configurations that outperform the classical Halbach design in terms of field strength and homogeneity. The new designs offer great potential for applications in MRI, particle accelerators, and magnetic levitation systems.
Researchers at Tohoku University developed a novel strategy to modulate spin states of single-atom catalysts using external magnetic fields. This approach improves electrocatalytic performance by reducing activation energy and increasing reaction rates.
Researchers developed a novel method to analyze energy losses in soft magnetic materials, using diamond quantum sensors and protocols for kHz and MHz frequencies. The study reveals near-zero phase delay up to 2.3 MHz in high-frequency inductors, indicating negligible energy losses.
Researchers have demonstrated a new quantum sensing technique that surpasses conventional methods by counteracting the limitation of decoherence. The study's coherence-stabilized protocol allows for improved sensitivity and detection of subtle signals, with up to 1.65 times better efficacy per measurement.
The VTF successfully captured a two-dimensional snapshot of the Sun at specific wavelengths, showcasing its scientific capabilities. The instrument enables scientists to analyze plasma properties and study solar magnetic fields, crucial for understanding solar flares and space weather.
Researchers detect anomalous Hall effect in collinear antiferromagnets with non-Fermi liquid behavior, revealing a 'virtual magnetic field' that boosts the phenomenon. The findings open up new possibilities for information technologies and require further experimental confirmation.
Researchers explore evaluation methods for sensitivity limits of quantum magnetometers, revealing intrinsic connections and relationships between quantum characteristics. The study advances theoretical development in quantum magnetometry and experimental optimization.
A new study from the University of Texas Institute for Geophysics suggests that Mars' molten core could explain its unusual magnetic field. Researchers used computer simulations to model a fully liquid core and found that it could produce a one-sided magnetic field, matching the imprint seen today.
Researchers have developed a novel oxide material that exhibits autonomous spin orientation control in response to magnetic fields, allowing for the detection of both field direction and strength. The 'semi-self-controlled' spinning enables advanced angle-resolved spintronic devices with strong potential for next-generation technologies.
Researchers at Flinders University demonstrate how the Earth's magnetic field influences fluid flow, creating exciting possibilities for nano-processing and sustainable green chemistry. The study reveals that fluid flow coupled with magnetic fields can result in the preference of one chirality over the other.
Researchers at Hebrew University and Cornell University developed a way to suppress spin decoherence in alkali-metal gases, reducing spin relaxation rates by an order of magnitude. This breakthrough enables more stable and precise quantum devices, such as atomic clocks and magnetometry.
A comprehensive study examined vehicle-mounted wireless power transfer systems to ensure user safety during electric vehicle charging. The research revealed key considerations for designers: optimizing field distribution patterns, mitigating misalignment effects, and shielding high-frequency cables.
Scientists studied Sagittarius C using the James Webb Space Telescope to understand why fewer new stars are born in the region. They discovered powerful magnetic field lines that form long, bright filaments of hot hydrogen gas, slowing down star formation.
In extremely thin films of niobium diselenide (NbSe₂), superconductivity becomes confined to the surface when thinner than six atomic layers. This discovery challenges previous theories and could have important implications for understanding superconductivity and developing advanced quantum technologies.
Researchers have created tiny robotic tools that can grip, pull and cut tissue in the brain using external magnetic fields. The tools, which are only a few millimetres in diameter, were tested on a phantom brain and found to make precise cuts with an average width of 0.3-0.4 millimetres.
Researchers developed a lighter, smarter magnetoreceptive e-skin that tracks signal paths for applications like virtual reality and robotic systems. The new technology emulates the functioning of real skin and saves energy by using a single global sensor surface and central processing unit.
Researchers have developed a nickel-iron alloy metamaterial that can concentrate and locally enhance magnetic fields. By controlling the geometry and number of 'petals', the effect can be increased, making it suitable for improving the sensitivity of magnetic sensors.