Articles tagged with Magnetic Fields
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Researchers have developed a refined magnetic sense using algorithms and hardware from quantum computation, achieving six times higher sensitivity than classical methods. The transmon qubit-based magnetometer uses adaptive phase-estimation schemes to measure the strength of external magnetic fields.
Astronomers have directly observed the magnetism in Supernova 1987A, a dying star that appeared thirty years ago. The detection reveals a degree of order in the magnetic field, contrary to chaotic expectations.
Researchers found that ultra-high-strength MRI releases high levels of mercury from amalgam fillings, but lower strength MRI does not cause significant leakage. The study suggests further research is needed to evaluate the relationship between high-field MRI and mercury release.
Scientists at the University at Buffalo have developed heated magnetic nanoparticles that can selectively target and destroy tumors with significant amounts of heat under low-magnetic fields. The new technology has potential benefits over other treatments, including minimal side effects and deeper penetration into hard-to-reach body pa...
A team of international researchers created a dynamic surface, FLIPS, that can sculpt and re-sculpt microscale to macroscale features, change friction and slipperiness based on magnetic fields. It has been shown to direct particle movement, remove biofilms, coat droplets, and act as an adhesive.
Russian scientists have developed a new method of bioprinting that allows creating 3D-biological objects without the use of layer-by-layer approach. This technology was made possible by magnetic levitation experiments in microgravity conditions, enabling the creation of radiation-sensitive biological constructs and repair of damaged ti...
Researchers at National Institutes of Natural Sciences and United States collaborators discover turbulence exists in magnetic island, propagates faster toward center than modulated temperature change. This breakthrough demonstrates new way to suppress turbulence using propagation idea.
Magnetic vortex structures enable high-performance magnetic sensors with improved sensitivity and integration, reducing interference signals and noise. Researchers redesigned the transducer element to align atomic magnetic dipoles in a circular pattern, leading to direct changes in electrical resistance.
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.
An international team has cataloged around 200 solar prominence oscillations detected in the first half of 2014. The analysis revealed that almost half of these events have been of large-amplitude, with speeds between 10 km/s and 100 km/s.
A recent study validates a theory on quantum magnets behaving like photons of light, opening up new possibilities for understanding light's properties. The research team used neutron spectrometers to detect the presence of emergent electric and magnetic fields in a material called praseodymium hafnate.
MIT physicists have found a way to boost thermoelectricity's potential, with a theoretical method that could produce five times more efficient materials and potentially double the amount of energy generated. The new approach uses topological semimetals under strong magnetic fields, enabling electrons and holes to move in opposite direc...
Scientists at New Jersey Institute of Technology's Owens Valley Solar Array (EOVSA) captured potent solar flares in multiple radio frequencies for the first time. The new data reveals that high-energy particles are promptly transported throughout the explosive magnetic field, shedding light on the acceleration process.
Scientists created self-contained spaces inside mammalian cells using bacterial proteins, allowing for controlled enzymatic reactions and iron biomineralization. This technology could aid in cell therapy, gene reporting, and sorting, opening new avenues for biomedical research.
A study co-authored by UCLA scientists reveals evidence of water vapor plumes on Europa's surface, providing further support for the possibility of a vast ocean beneath its icy outer shell. The research suggests that there are energy sources in the moon's interior that would be required if life were to develop on Europa.
The Parker Solar Probe and Solar Orbiter missions will take us closer than ever before to the Sun, providing a comprehensive understanding of its inner workings and shedding light on space weather events that can disrupt technology and power grids. The missions aim to clarify the coronal heating problem and study the solar wind's inter...
A new method for studying semiconductor nanoparticles has been developed using the magneto-optic effect, allowing for non-invasive analysis without altering the structure. The method was successfully tested on cadmium telluride nanoparticles and showed promising results.
Physicists at Ames Laboratory successfully mapped the spatial distribution of the Meissner effect, a hallmark signature of true superconductors. The technique used nitrogen-vacancy centers in diamond to measure magnetic fields with unprecedented sensitivity and resolution.
MMS mission discovers a new process of magnetic reconnection that converts turbulent magnetic energy into high-speed jets of electrons. This finding helps scientists understand the role of magnetic reconnection in heating the solar corona and accelerating the solar wind.
Researchers have designed a magnetoelectric device that uses chromia to store information without requiring an externally applied magnetic field. This could lead to more energy-efficient and compact memory devices.
Researchers have developed a new laboratory method to study magnetic reconnection, a process giving rise to solar flares and northern lights. The technique enables precise investigation of this phenomenon without overheating the plasma, opening doors to better understanding solar flares' impact on communication systems.
Researchers from NUS have made a breakthrough in understanding the magneto-resistance effect and its relation to spin texture of topological surface states. The team's findings could help in addressing the issue of spin current source selection in spintronic devices.
Researchers developed a method to measure proton nuclear resonance dispersion profiles at low magnetic fields, revealing the water exchange rate of tumor cells. This enables direct assessment of tumor status and metabolic activity, which is characteristic of aggressive and highly metastatic tumors.
A team of scientists has proposed a method to boost wireless power transfer over long distances using backward signal transmission. The study, published in Physical Review Letters, demonstrates the effectiveness of this approach in enhancing power transfer efficiency.
A team of researchers from the University of Maryland has discovered a new type of superconductivity in the material YPtBi, which relies on highly unusual electron interactions. The discovery challenges conventional theory and opens up new possibilities for exotic materials.
A study reveals that neutron star magnetic hot spots can survive for millions of years despite the overall magnetic field decay. The simulations show strong electric currents producing heat, explaining the strange behavior of magnetars like SGR 0418+5729.
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.
A new technique uses engineered diamond crystals to increase the strength of magnetic field produced by molecules, increasing their signal when measured by MRI. This could enhance imaging sensitivity for patient diagnosis and personalized medicine.
Researchers discovered micron-scale particles linked to a magnetic field can self-assemble into swimming motion, replicating human breaststroke. The ability can be controlled with an eccentric magnetic field, allowing for potential use as drug-delivery vehicles or micro-robots.
Astronomers have created the first high-resolution map of magnetic field lines around a black hole at the center of our galaxy. The map, produced using CanariCam infrared camera, reveals intricate details about gas and dust swirling around the supermassive black hole.
Researchers have identified a fourth ULX as a neutron star, shedding new light on how these objects can shine so brightly. The study found unusual dip in the ULX's light spectrum attributed to cyclotron resonance scattering, revealing strong magnetic fields around the neutron star.
Scientists used NASA's Solar Dynamics Observatory to study a massive sunspot group and found that a magnetic cage prevented a coronal mass ejection (CME) from erupting. The model showed that the conflict between the magnetic rope and cage led to a powerful X-class flare instead.
A team led by Professor Pat Roche created the first high-resolution map of magnetic field lines in gas and dust swirling around a supermassive black hole at the centre of our Galaxy. The map shows intense infrared light and magnetic field lines within filaments of warm dust grains and hot gas, revealing their intricate relationship.
Researchers at Oregon State University found that newly-hatched salmon use the geomagnetic field to orient themselves vertically when emerging from gravel nests. This ability allows them to navigate three-dimensionally and orient themselves in their environment, which is crucial for survival.
Astrophysicists develop model to test hypothesis about supermassive black holes and their impact on galaxy jets. The study suggests that part of the jet's power comes from the rotating black hole, which loses angular momentum as it emits energy. By measuring magnetic fields in jets, scientists can estimate this rotational energy loss.
The 'microscale magnetic tumbling robot' can traverse uneven surfaces and climb steep inclines in both dry and wet environments. Researchers developed the bot using standard photolithography techniques and explored its performance in fluid media to address unique challenges at the micro-scale.
Researchers at Tohoku University successfully recreated conditions similar to those in space without an electric field-trapping boundary. The study shows the electron gas expands adiabatically when electric fields are removed, demonstrating the extension of classical thermodynamics to out-of-equilibrium systems.
Astrophysicists at UChicago used laser experiments to verify the turbulent dynamo theory, explaining the generation of cosmic magnetic fields. The study confirmed that turbulent plasma can amplify a weak magnetic field to strengths observed in stars and galaxies.
Scientists identified a confining 'cage' in which a magnetic rope forms, causing solar eruptions. The resistance of this cage determines the power and type of flare. A new model predicts maximum energy release during solar flares, potentially devastating for Earth's systems.
The Rice lab demonstrates energetic properties of colloids in spinning magnetic fields, gathering into disorganized aggregated clusters and then forming crystal-like regimes as the field strength increases. The researchers explore ways to model novel two-dimensional materials like tunable catalysts or colloids with changing surface areas.
Scientists analyzed data from HINODE to reveal a strongly magnetized iron atom signature in a sunspot, with a magnetic field strength of 6,250 gauss, more than double the usual amount. The strongest field was found at a bright region between two umbrae, not in the dark core as expected.
Researchers have resolved the ambiguity between Ampere's and Gilbert's forms of magnetic force, enabling characterization of particle spin dynamics in inhomogeneous electromagnetic fields. This advance can be applied to precision experiments, including those involving muons and neutrinos.
Researchers have demonstrated the potential for diamond as a material for spintronics, with strong spin-orbit coupling and tunable magnetic field control. Diamond's ease of processing and fabrication make it an attractive alternative to traditional semiconductor materials.
A team of scientists has solved a puzzle in astrochemistry by developing a way to measure magnetic fields in space using methanol. The new method, published in Nature Astronomy, gives astronomers a new tool to investigate how massive stars form.
Proton acceleration is hindered by magnetism, as electrons create a sheath field that accelerates protons at right-angles to the target. This effect, known as magnetic inhibition, progressively worsens at higher laser powers, reducing proton energies.
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.
A new study by UTSA professor Chris Packham and colleagues reveals weaker-than-expected magnetic fields around a black hole, contradicting previous models. The findings shed light on the complex relationship between black holes and galaxies, hinting at a deeper understanding of these cosmic phenomena.
A research team led by Tanya Prozorov has demonstrated the first high-resolution mapping of magnetic fields in bacterial cells and magnetic nano-objects in liquid. This capability has vast potential for scientific breakthroughs in physics, nanotechnology, biofuels conversion, biomedical engineering, catalysis, batteries, and pharmacology.
Researchers at Brown University developed a new technique that enhances NMR signal strength and versatility for studying nanomaterials and exotic states of matter. By using flat NMR coils, the team was able to optimize signal detection for various sample shapes and experiment types.
A Kaiser Permanente study found a significantly higher rate of miscarriage among pregnant women exposed to high levels of non-ionizing radiation from magnetic fields. The study, which measured exposure levels over 24 hours, reported a nearly three times higher relative risk for miscarriage.
A Russian scientist discovered how a polymer sample with magnetizable particles responds to external magnetic fields, revealing potential applications in various industries. The study found that the arrangement of particles affects the material's elastic properties, leading to significant changes under moderate magnetic fields.
Scientists have discovered black holes have significantly weaker magnetic fields than previously thought, with measurements about 400 times lower than estimated. This finding deepens our knowledge of how matter behaves under extreme conditions and could impact nuclear fusion power and GPS systems.
Researchers at the University of São Paulo and San Diego State University found that niobium boride does not exhibit superconductivity, contrary to traditional manuals. Instead, pure niobium filaments in the material are responsible for its high-temperature superconducting properties.
Astronomers measured the magnetic field of a black hole in a binary system using data from a sudden flare. The field was found to be substantially weaker than expected, providing new insights into how black holes consume material.
Researchers have demonstrated a new method to produce biotemplated nanoswimmers using bacterial flagella as templates, overcoming high startup costs of traditional approaches. The nanorobots can perform nearly as well as living bacteria and show potential for targeted cancer therapeutics and electronics applications.
Researchers found a strong inverse relation between magnetic field strength and star formation rate in molecular cloud complexes. This suggests that magnetic fields slow down or stop the collapse of gas clouds to form stars, leading to fewer massive stars in galaxy centers.
The Max-Planck-Princeton Center has made significant progress in fusion research, investigating plasmas in astrophysics and advancing understanding of magnetic reconnection. New computer codes and experimentation have improved simulations, resolving long-standing questions about solar wind heating and magnetic field behavior.
Physicists at MIT and Princeton University have developed a new technique to map the energy and momentum of electrons beneath a material's surface. By using momentum and energy resolved tunneling spectroscopy, researchers can visualize the band structure of materials, which determines their electrical and optical properties.
Researchers at IST Austria have developed micrometer-scale, nonmagnetic devices that route microwave photons and shield qubits from harmful noise. The compact devices are a significant improvement over traditional predecessors and could revolutionize the development of quantum computers.
Scientists found that magnetic field strength increases linearly with distance from the specimen, making the double H-coil method more accurate for certain applications. The study suggests using the double H-coil method when data requires higher accuracy.