Articles tagged with Magnetic Fields
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Astronomers have discovered hair-like filaments of magnetic field protruding above and below the disk of spiral galaxy NGC 4631. The filaments, extending beyond the disk into the galaxy's extended halo, indicate a large-scale, coherent magnetic field.
Researchers at NJIT's Big Bear Solar Observatory have uncovered a likely mechanism for the Sun's upper atmosphere heating, revealing jets of magnetized plasma known as spicules. High-resolution images show spicules erupting from the Sun's surface at speeds of up to 100 km/s.
Magnetic reconnection near the solar surface generates solar spicules, which channel hot plasma into the corona. The study reveals that energy released from magnetic field realignment triggers enhanced spicular activity, causing local heating of the upper atmosphere.
Scientists at ETH Zurich created quadrupole magnetic building blocks that can be assembled into any two-dimensional shape using attractive south and north poles. These modules have potential applications in soft robotics and could be used to create robots controlled by a magnetic field.
Researchers will build a quantum mechanical magnetic camera using $2 million grant from NSF, enabling them to capture snapshots of weak magnetic fields emanating from quantum materials. The device aims to reveal intricacies of magnetic interactions and may have industrial applications in quality control and medical diagnostics.
Researchers at the University of Sussex have developed an adhesive that can unstick when exposed to a magnetic field, allowing for easy disassembly and recycling of products. The adhesive works with various materials, including plastic, wood, glass, and metal, and is comparable in strength to industry-standard adhesives.
Researchers at the University of Groningen have created a new type of superconductor using suspended layers of molybdenum disulfide. The superconductivity is strongly protected against external magnetic fields, even in extremely strong static magnetic fields.
Researchers from MIPT Laboratory of Topological Quantum Phenomena discovered a way to locally control and manipulate Josephson vortices using a magnetic force microscope. This breakthrough enables the creation of future superconducting quantum computing machines.
Astronomers refine search for potentially habitable planets by modeling stellar activity and its effect on planetary magnetic fields. Researchers estimate that some exoplanets could lose their atmospheres in as little as 100 million years due to intense radiation from their stars.
Researchers developed an electronic sensor that can process both touchless and tactile stimuli, enabling seamless interaction in virtual reality scenarios. The sensor's flexibility allows it to register a clear shift from touchless to tactile interaction, allowing for selective control of physical and virtual objects.
Researchers at PPPL develop new mathematical tools to forecast wave presence in fusion experiments, providing new methods for maintaining plasma confinement. Meanwhile, scientists also find unexpected links between astrophysical processes and small-scale experiments, shedding light on magnetic reconnection.
Scientists at Helmholtz-Zentrum Dresden-Rossendorf have identified a new form of magnetic instability in the Sun's rotating plasma, which may contribute to its magnetic field generation. This discovery could be a significant step forward in understanding sunspots and their cycles.
Researchers at Johannes Gutenberg University Mainz used a novel nuclear magnetic resonance technique called ZULF to search for dark matter. They found no evidence of ultralight dark matter particles with couplings above a particular threshold, ruling them out as possible candidates.
Researchers at NTNU have created magnetic supercrystals that assemble themselves into strong shapes, increasing cohesive energy by up to 45% due to magnetism. This discovery opens up new possibilities for controlling the mechanical properties of these structures, which could be used in various applications.
Researchers developed a new method to separate mixtures of rare earth metals using magnetic fields, achieving a doubling in separation performance. This breakthrough has potential applications for recycling and can help address geopolitical and climate issues associated with rare earth mining and recycling.
Researchers used supercomputer simulations to study magnetic reconnection, a process that releases kinetic energy in the universe. The simulations revealed a previously unknown role for the Biermann battery effect, which impacts magnetic reconnection in unexpected ways.
Researchers have discovered that injecting frozen hydrogen fuel pellets into a fusion reactor's plasma can help repair tears in the surrounding magnetic field, reducing magnetic island instabilities. This approach may improve the efficiency of future fusion power plants by freeing up resources needed for magnetic stability.
New research reveals a novel explanation for the origin of cosmic magnetic fields, potentially solving a long-standing puzzle. The study suggests that strong primordial electric fields can be responsible for generating magnetic fields after inflation.
A German-British team used computer simulations to demonstrate how the merger of two stars creates strong magnetic fields. This process could result in the formation of magnetars, which are thought to have the strongest magnetic fields in the universe.
Researchers discovered re-entrant superconductivity in uranium ditelluride, a phenomenon where a superconducting state arises, breaks down, and then re-emerges. High magnetic fields induced the rare 'Lazarus' behavior, which has implications for quantum computing.
Scientists at the University of Hong Kong and Hunan Normal University have realized a giant magnetic field through moiré pattern engineering. The magnetic flux per supercell is quantized, and the field magnitude scales inversely with the square of the moiré period.
Astronomers analyze radio pulses from a fast radio burst to characterize the diffuse gas in a galactic halo, finding surprisingly low density and weak magnetic field. The discovery challenges previous models and provides new insights into ejection processes and galaxy evolution.
Scientists have discovered a way to manipulate the electronic properties of tungsten disulfide, a super-thin material, by controlling its energy valleys. This innovation could potentially be used for encoding quantum data and enabling the creation of qubits for quantum computing.
Researchers at HZDR and TU Darmstadt developed a systematic magnetocaloric material library to assess promising materials for magnetic cooling. The study highlights the need for sustainable access to suitable materials, with iron-rhodium alloys showing potential as alternatives to rare-earth metals like gadolinium.
Scientists at University of Illinois replicate Hall Effect with photons, enhancing one-way radio transmission and absorbing opposing signals. The technique could protect sources from interference and ensure accurate quantum measurements.
Scientists at Fermilab have achieved the highest magnetic field strength ever recorded for an accelerator steering magnet, reaching 14.1 teslas. The success is crucial for future high-energy hadron colliders that require even stronger magnets to accelerate protons to higher energies.
A team of astrophysicists discovered a connection between the brightening of pulsar wind nebula and the spin-down rate transition in PSR B0540-69. The study found that the X-ray PWN around PSR B0540-69 increased by 32% over 400 days, indicating a sudden enhancement of the magnetic field that powers the pulsar wind.
For the first time, researchers have demonstrated the three-dimensional quantum Hall effect, a phenomenon predicted over 30 years ago. The discovery was made using a unique material called ZrTe5, which exhibits signatures of the 3D QHE at low temperatures under moderate magnetic fields.
Scientists at University of Wisconsin-Madison successfully recreated the sun's solar wind and 'plasma burps' in a laboratory setting, confirming their development and providing an Earth-bound model for future study. The experiment used a three-meter-wide hollow sphere to mimic the sun's plasma and electromagnetic fields.
Researchers at Stanford University have discovered a novel form of magnetism, called orbital ferromagnetism, generated by carefully stacking and rotating honeycomb-shaped carbon lattices. This finding could prove useful for certain applications, such as quantum computing.
Researchers at Purdue University developed a wearable device that detects low respiration rates and releases naloxone, reversing deadly effects of opioid overdose. The device could save lives by buying time for emergency services to arrive.
Researchers used observations and physics theory to estimate magnetic field strengths for four hot Jupiters, ranging from 20 to 120 gauss. The findings suggest that internal heat flux plays a key role in determining planetary magnetic fields.
Researchers at Shinshu University have developed a method to improve the properties of activated carbon using high magnetic fields. By applying a magnetic field of 10T during production, they increased the micropore capacity of activated carbon by 35%, making it more effective for air and water purification.
Researchers at the University of Utah discovered that as the insulating layers of a topological insulator get thinner, its metallic surfaces start influencing each other and losing their conductivity. The study found that this phenomenon occurs at an insulating layer thickness of around 16 quintuple atomic layers across.
TAE Technologies, backed by DOE funding through INCITE program, aims to achieve commercially viable nuclear fusion energy. The company's FRC device seeks to confine plasma at high temperatures for extended periods, paving the way for sustainable, carbon-free energy production.
A KAUST research team has developed a computational model of ferrofluid motion, overcoming limitations in previous models. The new model eliminates singularities in the magnetic field, allowing for more robust simulations and accurate predictions of ferrofluid behavior.
A new coating of niobium-tin (Nb3Sn) has shown promise for reducing the cost of operating superconducting radio-frequency cavity resonators. The material could allow for operation at lower temperatures and withstand higher electromagnetic fields, saving millions in construction and electricity costs.
Researchers used NASA data to predict the corona's appearance during a total solar eclipse, assessing and improving their models. Their prediction featured a nebulous corona with two wide streamers, which they confirmed with post-eclipse observations.
Researchers at QNS have developed a technique to visualize the magnetic field of single atoms with unprecedented resolution. This breakthrough enables the mapping of spin distribution in complex structures such as molecules and magnetic materials.
The study reveals a multi-state transition in NbSe2, transitioning from superconductor to special metal (Bose metal) and then to insulator. The team found that the transition is driven by quantum fluctuations, with the material exhibiting minimal resistance due to moving vortices.
An international team of astronomers has captured the first-ever polarized radio waves from a distant cosmic explosion, known as gamma-ray burst GRB 190114C. The discovery provides new insights into how jets are formed in gamma-ray bursts and could shed light on the role of magnetic fields in powering these energetic events.
Scientists have detected the first polarized radio waves from a gamma ray burst jet, revealing that magnetic fields are more patchy and tangled than previously thought. The discovery was made possible by advanced radio telescopes and allows researchers to test theories about the structure of magnetic fields within jets.
Researchers found that even after losing ability to carry electrical current with no energy loss, materials retain some conductivity and possibly electron pairs required for superconductivity. The discovery supports the role of 'charge stripes' in formation of charge-carrier pairs essential to resistance-free flow of electrical current.
The new system achieves direct, atom-resolved imaging with a residual magnetic field less than 0.2 mT, 10,000 times smaller than conventional lenses. Researchers have successfully observed the atomic structure of silicon steel sheets, enabling unprecedented characterization of magnetic materials.
A new method allows researchers to map magnetic field orientations in space using ground-based telescopes, revolutionizing studies of star formation and cosmic rays. The 'Wisconsin technique' generates high-resolution maps comparable to those obtained with the Planck mission.
The new magnetic metamaterial, made of plastic and copper, can amplify MRI imaging capabilities and cut scan time in half. It has the potential to increase the number of patients seen by clinics and decrease associated costs without risking higher-strength magnetic fields.
Researchers at NIST developed a method to measure magnetic properties of nanoparticles by rapidly enlarging magnetic bubbles, revealing the orientation of individual nanoparticle poles. This technique enables fast and economical measurement of magnetic stability for various medical and environmental applications.
A team of researchers has discovered a massive radio-emitting plasma ridge in the gap between two merging galaxy clusters. This finding challenges existing theories on particle acceleration in intergalactic space and suggests an unknown mechanism at play.
Researchers developed a new composite material with magnetic shape memory activated by magnetism, offering advantages in medicine and robotics. The material consists of polymer and droplets of magnetorheological fluid, increasing stiffness up to 30 times.
A team of scientists has created a stable, supersonic, and strongly magnetized plasma jet in a laboratory setting. The team successfully used advanced diagnostics to confirm the jet's formation and characterize its properties.
Researchers from Helmholtz-Zentrum Dresden-Rossendorf found that Venus, Earth, and Jupiter's tidal forces impact the Sun's magnetic field, causing it to follow a regular cycle. This discovery explains the Sun's 11-year activity cycle and has implications for climate predictions and space weather.
Researchers at the University of Arkansas have discovered a promising new material that can efficiently store information using both magnetic and electric fields. The study suggests this material, bismuth ferrite, could lead to faster and cheaper computer memory.
A new study reveals that charged particles can emit bright flashes of gamma rays by interacting with the quantum vacuum, challenging a long-held assumption about the nature of empty space. The researchers used high-powered lasers and strong magnetic fields to create conditions where Cherenkov emission could occur in vacuum.
Researchers at MIT have developed a new way to measure atomic-scale magnetic fields, not only up and down but also sideways. The technique uses nitrogen-vacancy defects in diamond to detect tiny variations in magnetic fields, providing high precision in multiple dimensions.
Research by the Princeton Plasma Physics Laboratory and international team of scientists shows that twisted magnetic fields have a limited number of possible evolutions, leading to the formation of a torus shape. The helicity of the twist constrains the outward expansion of plasma, resulting in a self-organized structure.
The latest data from Juno and Cassini spacecraft has challenged existing theories on planetary formation and behavior, revealing new insights into Jupiter and Saturn's magnetic fields and atmospheres. Surprisingly, the atmosphere is evenly mixed, contradicting conventional predictions.
Scientists from France, Spain, and Germany show that applying an electric field can induce superferromagnetism in iron nanograins on a BaTiO3 substrate. This 'straintronics' approach offers a scalable, fast, and energy-efficient alternative to traditional magnetic memories.
Princeton researchers have demonstrated a new way of making controllable 'quantum wires' in the presence of a magnetic field. They found channels of conducting electrons that form between two quantum states on the surface of a bismuth crystal subjected to a high magnetic field. The current flow in these channels can be turned on and of...
Researchers at UPV/EHU developed a protocol for quantum-enhanced NMR to measure nuclear and electronic spins in arbitrary samples. This allows for unparalleled sensitivity and resolution of chemical shifts in tiny picoliter samples, opening up new research lines for biological sample study.
Astronomers have discovered that particle escapees from black holes steal rotational energy through interactions with magnetic fields, resulting in high-speed plasma jets. The new simulations show two main mechanisms: the Blandford-Znajek process and a particle-boosting mechanism near the equator.