Articles tagged with Magnetic Fields
Researchers have solved the paradox of the mysterious polarization of the sodium D1 line, revealing that magnetic fields in the solar chromosphere are not entirely unmagnetized. The solution uses complex theoretical modeling and resolves a long-standing debate in solar physics.
Quantum engineers at the University of New South Wales have discovered a new technique to control millions of spin qubits, a critical step towards building a practical quantum computer. This breakthrough uses a novel component called a dielectric resonator to focus microwave power and deliver uniform magnetic fields across the chip.
A team from the Russian Quantum Center developed a novel solid-state supersensitive room-temperature magnetometer capable of registering weak electrical sources in the brain. The device successfully detected alpha rhythm, a sinusoidal electric current in the back of the brain, and showed higher sensitivity than existing systems.
Scientists have developed a paramagnetic ring that encapsulates water droplets under a magnetic field, enabling precise manipulation. The ring, made of an oil-based ferrofluid, forms spontaneously around the droplet and can be moved remotely by changing the magnetic field.
A new study published in Monthly Notices of the Royal Astronomical Society found that superflares on red dwarf stars occur at high latitudes, near the star's poles, which means they are not directed towards orbiting exoplanets. This reduces the danger to planetary atmospheres and habitability.
Researchers using ALMA data have observed gas re-accreting onto galaxies affected by ram pressure stripping, potentially slowing down their demise. This process creates unique structures resistant to ram pressure's effects, with mass and a sticky nature that holds onto material more tightly.
Scientists at São Paulo State University discovered that compressing paramagnetic salts adiabatically can produce magnetization. The process aligns the particles' spins, resulting in a constant total entropy and magnetized system. This method has potential applications in investigating other interacting systems.
A team of researchers from the Flatiron Institute and Princeton University has found that the magnetic field around a black hole quickly decays when surrounded by plasma. This process, known as 'magnetic reconnection,' rapidly drains the magnetic field and could explain flares seen near supermassive black holes.
New research reveals that magnetic fields of middle-aged stars become sub-critical, leading to reduced angular momentum losses and altered magnetic field strengths. This phenomenon breaks the relationship between a star's age and its rotation rate, allowing for a diversity of solar-stellar phenomena.
Researchers have identified a protein in bird retinas sensitive to the Earth's magnetic field, guiding migratory patterns. This discovery may lead to development of highly sensitive magnetic field sensors for navigation systems.
Researchers have discovered a unique quantum physics signal known as the 'layer' Hall effect in a solid-state chip made of antiferromagnetic manganese bismuth telluride. The finding signals the presence of a sought-after topological Axion insulating state, a feature bound by quantum physics laws.
Researchers observed signs of spin-triplet superconductivity in magic-angle trilayer graphene, which resists high magnetic fields and could improve MRI technology. This exotic material's ability to persist superconducting under strong magnetic fields has the potential to revolutionize technologies like quantum computing.
Researchers have made a groundbreaking discovery about the Sun's magnetic field, revealing that field lines become knotted before emerging at the visible surface. The findings provide conclusive evidence for one of two dominant theories explaining how solar activity occurs.
A Korean research team has identified the origin of bifurcated current sheets in the Earth's magnetosphere through theoretical analysis and simulations. The study reveals that these sheets naturally bifurcate during equilibration, resolving a long-standing mystery.
Researchers reconstructed the encounter with ATLAS's tail using combined measurements from Solar Orbiter's instruments. The model indicates that the ambient interplanetary magnetic field 'drapes' around the comet, forming a central tail region with a weaker magnetic field.
Researchers have resolved magnetic structures of different topological semimetals using advanced techniques. For PrAlGe and DySb, the study reveals a uniaxial magnetic interaction in PrAlGe with antiferromagnetism and a field-induced tricritical phenomenon in DySb.
Research found that MRI's static magnetic field decreases blood-brain barrier opening volume and microbubble cavitation activity, leading to reduced drug delivery efficiency. The study suggests considering the impact of the magnetic field in clinical applications of focused ultrasound for brain disease treatment.
Researchers at Ewha Womans University have created ultra-stable single-atom magnets that can maintain their magnetic state over days. Using Scanning Tunneling Microscopy, the team achieved atomic-scale control of magnetic fields within quantum architectures.
Scientists have created two types of composites based on PVDF polymers and a PVDF-based copolymer with magnetic nanoparticles, showing enhanced magnetoelectric response. The addition of barium titanate particles significantly amplifies the effect.
Scientists found that Mercury's large iron core is linked to the early sun's strong magnetic field, which pulled metal grains inward. This discovery sheds light on the formation of rocky planets' cores and their elemental distribution.
Researchers developed a new magnetic memory device using antiferromagnetic materials, offering improved scalability, write speed, and security. The device's unique structure allows for simultaneous writing and reading of data, addressing key challenges in high-performance AI applications.
A team led by M. Zahid Hasan discovered a new type of ordering in electric charge in a superconducting material with a kagome lattice structure. The researchers used advanced scanning tunneling microscopy to find evidence for topological-type charge order in AV3Sb5, a previously unknown pattern of electronic charge distribution.
A team of UK scientists has confirmed a decades-long theoretical prediction about gamma-ray bursts. They measured the magnetic field in a far-off Gamma-Ray Burst and found it was scrambled after the ejected material crashed into, and shocked, the surrounding medium. This discovery sheds new light on these extreme cosmic blasts.
Researchers at Nanyang Technological University created millimetre-sized robots that can be controlled using magnetic fields to perform highly manoeuvrable manipulations. These robots improve on existing small-scale robots by optimizing their ability to move in six degrees-of-freedom, and can rotate 43 times faster than previous devices.
Researchers propose comprehensive explanation of sun cycles based on planetary attractive forces, reproducing known solar activity fluctuations. However, long-term forecasts become impossible due to chaotic process in activity over thousands of years.
A recent experiment by Prof. YAN Xingbin's group reveals that an external magnetic field can induce capacitance change in aqueous acidic and alkaline electrolytes but not in neutral electrolytes, providing insight into ion transport behavior.
Researchers discovered a new electronic property in a specially engineered metal alloy, enabling the manipulation of heat with a magnetic 'switch'. The material, called Weyl semimetal, exhibits unusual electron behavior, generating and absorbing heat to create an energy pump.
Researchers created a new qubit by manipulating hole spins in a germanium layer, enabling faster processing speeds and reduced magnetic field requirements. This breakthrough could lead to the development of more efficient quantum computers combining semiconductors and superconductors.
A new study by Chinese Academy of Sciences researchers has revealed diverse magnetic field morphologies in Solar-type star-forming cores in the Taurus B213 region. The findings contradict expectations based on theory that magnetic fields regulate star formation.
Researchers at the University of Bath have discovered a new mechanism that enables magnetism and superconductivity to coexist in iron-based materials. The study found that RbEuFe4As4 exhibits both properties below -258°C, which could lead to breakthroughs in green energy technologies and next-generation computer hardware.
Researchers have made a groundbreaking discovery at the center of our galaxy, revealing an X-ray thread and hinting at a previously unknown interstellar energy source. The findings provide the clearest picture yet of a pair of X-ray-emitting plumes emerging from the region near the massive black hole.
A new panorama of the Galactic Center builds on previous surveys, expanding Chandra's high-energy view. The image features X-ray and radio emission intertwined threads, bound by magnetic fields that may have formed through magnetic reconnection. This process drives galactic-scale outflows and affects cosmic rays and interstellar medium.
Researchers found strong antiresonance in orthoferrite materials when placed at an odd angle under high magnetic fields. This unique state allows for ultrastrong interactions between magnons, which could lead to suppressed fluctuation noise and increased sensitivity in quantum sensing applications.
Researchers observed plasma jets interacting with magnetic fields in a massive galaxy cluster 600 million light years away. The findings can help clarify how such galaxy clusters evolve, providing new insights into the structure of intracluster magnetic fields.
Artificial cilia powered by a rotating magnetic field move liquids around cells or propel soft robots with unprecedented efficiency. The researchers developed microscale cilia that mimic natural wave-like movements, producing faster pumping speeds and better control over flow rates.
Scientists at DGIST have discovered a novel way to control the alignment of magnetic atoms within antiferromagnetic materials using mechanical vibration and a magnetic field. This process replaces traditional heating and cooling methods, enabling more precise control over magnetic spins in spintronics devices.
A team at the University of Michigan has developed a material that boosts magnetostriction, allowing for more energy-efficient computing devices. The material could lead to significant reductions in electricity requirements and improve magnetic sensors for medical and security devices.
By vaporizing metals within a magnetic field, UC Riverside engineers direct the reassembly of metal atoms into consistent shapes and surfaces. The approach enables manipulation of particle assembly, producing string-like aggregates or globular clusters with tunable properties.
Chinese researchers successfully achieved a record-breaking 51.5dB non-reciprocal isolation in an atomic ensemble, surpassing the previous limit of 30dB. The new device has excellent robustness and is insensitive to external magnetic fields, opening up new possibilities for practical applications.
A study of historical equatorial auroral records from Seoul, South Korea, suggests that the West Pacific Anomaly may be an analog to the current South Atlantic Anomaly. The record shows strong fluctuations centered around 1590 and 1720, indicating changes in regional magnetic field strength not captured by current geomagnetic models.
Physicists at FAU have confirmed the long-predicted chiral Faraday effect in an experiment using nickel helices. This breakthrough provides a new piece of fundamental magneto-optical theory and has implications for astrophysics and quantum electronics.
Researchers simulate conditions necessary for Saturn's unique magnetic field, indicating higher temperatures at the equatorial region and lower temperatures at high latitudes. The findings advance the effort to map Saturn's hidden regions and provide insights into the planet's formation and evolution.
Astronomers have developed a new tool to investigate the structure of invisible inter-cluster magnetic fields in galaxies. The technique uses jets of high-energy particles emitted from massive black holes to create detailed maps of these magnetic fields.
A new method facilitates accurate analysis of magnetic field effects in complex nanostructures, enabling quantitative criteria for aromaticity. The technique sheds light on unexplained experimental results regarding magnetic shielding inside particles.
Researchers have developed a method called 'quasi-symmetry' that can minimize the negative effects of magnetic field errors in fusion reactors, improving stability and energy confinement. This breakthrough could accelerate the development of fusion energy as a safe and limitless source of power.
Researchers used asteroseismology to measure the spin of older stars, finding they rotate faster than predicted by magnetic braking theories. The study provides new insights into the weakening effects of magnetic braking on older stars.
Researchers have discovered an exotic new state of matter in the Kondo insulator ytterbium dodecaboride, which exhibits properties of both metals and insulators. The study used a newly developed 75-tesla duplex magnet to suppress insulating properties and measure quantum oscillations.
Researchers confirm the original findings that suggested a significant discrepancy in the muon's magnetic field from the Standard Model prediction. This discovery may indicate the presence of an undiscovered type of fundamental physics, leading to further investigation into the nature of particles and forces.
Researchers at Skoltech's Space Center have developed an algorithm to measure the geomagnetic field using CubeSats in a tetrahedral orbital formation. The system uses Kriging interpolation to predict magnetic field values, enabling improved attitude control and station-keeping systems.
A team of researchers has discovered that Jupiter's polar cap is threaded with both open and closed magnetic field lines, contradicting the long-held assumption of all lines being either open or closed. This finding reveals a complex topology of Jupiter's magnetosphere, raising new questions about its interaction with the solar wind.
The Muon g-2 Collaboration has published the first result of its measurement, revealing a discrepancy of 4.2 standard deviations between experiment and theory. The result strengthens evidence for the existence of new physics, potentially indicating previously unknown particles or forces.
Scientists from Argonne National Laboratory and Fermi National Accelerator Laboratory have conducted an experiment to test the current understanding of the universe. The first result points to the existence of undiscovered particles or forces, which could help explain long-standing scientific mysteries like dark matter.
Researchers at NIMS and Osaka University have found a way to preserve superconductivity in thin films of atomic-scale thickness when exposed to strong magnetic fields. This discovery could lead to the development of superconducting materials resistant to magnetic fields, enabling topological superconductors for quantum computing applic...
The EHT collaboration has revealed a new view of the massive object at the centre of the M87 galaxy, measuring polarisation and magnetic field lines just outside the black hole. This new data is key to understanding how the M87 galaxy launches energetic jets from its core.
Astronomers using the Event Horizon Telescope have observed polarised light around a black hole, showing that magnetic fields at its edge are strong enough to push back against hot gas and resist gravity's pull. This discovery helps explain how the M87 galaxy launches energetic jets from its core.
Astronomers have captured the first-ever image of a black hole's magnetic fields, revealing that polarized light reveals the structure of these fields just outside the event horizon. This breakthrough observation will help scientists understand how energy is extracted from spinning black holes to produce powerful jets.
A new view of the region closest to M87's supermassive black hole reveals important details of magnetic fields and hints at how powerful jets originate. The observations suggest strongly magnetized gas plays a key role in launching energetic jets.
Researchers at Ames Laboratory observe complex helical magnetic ordering in EuIn2As2, a topological compound that supports exotic electrical conduction. The discovery has significant implications for functional topological properties and may lead to advanced technology applications.
Researchers have captured the time history of magnetic field growth in a lab setting using laser-driven experiments. The findings suggest that turbulent dynamo mechanism amplifies magnetic fields rapidly, exceeding theoretical expectations and potentially explaining the origin of large-scale fields in galaxy clusters.
Physicists at Johannes Gutenberg University Mainz have combined two quantum sensing techniques to analyze a sample, enabling the mapping of magnetic fields and magnetization. The technique uses diamond color centers in diamond probes to provide a sensitivity that opens up new measurement options.