Articles tagged with Magnetic Fields
Researchers developed a light-based technique for measuring weak magnetic fields, like those from the brain. The sensors can detect the brain's magnetic field and have the potential to replace MRI machines, offering an alternative for real-time brain activity mapping.
Physicists from the University of Tokyo have generated a record-breaking magnetic field of 1,200 teslas using electromagnetic flux compression. The field was sustained for over 100 microseconds, far exceeding previous records. This achievement has significant implications for material science and fusion power generation.
Scientists have recorded a massive 1,200 tesla magnetic field generated indoors, surpassing the strength of modern MRI machines and the Earth's magnetic field by millions of times. This achievement could pave the way for new discoveries in solid-state physics and nuclear fusion research.
Researchers at the University of Basel have developed a new technique to probe individual edge states in novel materials, such as topological insulators and 2D materials. This allows for precise measurement of current-carrying edge states with nanometer resolution.
Researchers have discovered a quantum state of matter that can be tuned at will, opening possibilities for next-generation nanotechnologies and quantum computing. The discovery allows for the control of an exotic topological quantum magnet at the quantum level.
Researchers developed a new method for detecting hazardous nitrogen-containing substances using nuclear magnetic resonance (NMR) relaxometry. The technique analyzes 14N NMR relaxation signals to identify explosives and toxic substances, offering improved efficiency and accuracy compared to traditional methods.
Researchers create device that reduces energy needed for magnetic field detectors, enabling applications in navigation, medical imaging, and natural resource exploration. The technology uses nitrogen-infused diamonds to detect magnetic fields with lower power consumption.
Researchers from Rutgers University discovered that lunar swirls are produced by strongly magnetized lava flows, challenging the existing understanding of the moon's geology. The study provides new insights into the moon's ancient volcanic activity and internally generated magnetic field.
Researchers at Predictive Science Inc. developed a complex numerical model to simulate the corona, using data from NASA's Solar Dynamics Observatory. Their prediction bore a striking resemblance to the Aug. 21, 2017, corona, indicating advances in the new model and its ability to reflect key features such as helmet streamers.
Researchers at NIST create graphene quantum dot structure using magnetic fields, confirming novel pattern of concentric rings. The discovery has practical applications in quantum computing and opens possibilities for relativistic quantum simulators.
Scientists use artificial materials with no natural imperfections to study physical effects that would be hard to see in real electronic materials. They make one of the first observations of a mobility edge in a low-dimensional system, showing an energy-dependent insulator-to-conductor transition.
A team of Russian and German researchers created a system that can measure temperatures and magnetic fields at very small resolutions. By exploiting properties of quantum spin in crystal vacancies, they attained micron-level resolution in temperature measurement.
Researchers have found that a copper-oxide compound's electrical resistance changes linearly with magnetic field strength at low temperatures. This finding supports the idea that high-temperature superconductors may not behave like ordinary metals, and could aid in developing room-temperature superconductors.
Researchers developed new magneto-plasmonic nanoscale routers and modulators for various nanophotonic functionalities. The devices exploit the propagation of surface-plasmon-polaritons in magneto-plasmonic waveguides to achieve high-contrast switching.
Astronomers have detected a strong magnetic field in a planetary-mass object beyond our Solar System, similar to Jupiter's but over 200 times stronger. The object is believed to be a free-floating planet, only 12.7 times more massive than Jupiter, and has a surface temperature of about 825 degrees Celsius.
Researchers discovered a new property in cuprate superconductors where resistivity scales linearly with high magnetic fields. This finding contradicts existing theories and suggests non-quasipartical mechanisms are at play.
Researchers at Florida State University's National High Magnetic Field Laboratory have discovered that cuprates, known for their unique behavior, carry current in a non-conventional way. The study reveals that the electrons seem to cooperate as they move through the material, contradicting the widely accepted understanding of conventio...
The Parker Solar Probe will directly sample solar particles and magnetic fields to resolve the origin and acceleration of the solar wind. It aims to understand how the solar wind is accelerated to speeds of up to 1.8 million miles per hour.
Physicists develop mathematical formula to approximate magnetic field circulation around a closed path or loop, based on Biot-Savart's law. The study provides a new approach to evaluate the effects of magnetic fields on human health and prevent exposure.
A team of researchers has discovered a general mechanism for the long-range electromagnetic proximity effect in superconductor-ferromagnet structures. This finding explains how ferromagnetic films can transfer magnetic fields to their corresponding superconductors, contradicting previous experimental results.
Researchers discover that magnetic fields break apart Cooper pairs, leading to damping force from unpaired electrons, causing nanowires to lose superconductivity. The findings confirm critical theory predictions made a decade ago, providing new insights into quantum phase transitions.
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.
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...
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.
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.
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.
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.