Articles tagged with Magnetic Fields
A UCF biologist has compiled a database of animal DNA to study the presence of magnetic bacteria, which may aid in navigation and conservation. The database contains hundreds of millions of genetic sequences showing the presence of various types of magnetic bacteria.
New research reveals offshore windfarm electromagnetic fields have minimal impact on shark growth and survival, but ongoing studies aim to improve understanding of effects on marine species. The study focused on small-spotted catshark development under control and windfarm-impacted conditions using AC or DC currents.
Physicists at Aalto University have developed a method to align bacterial cells using magnetic fields. By mixing bacteria into a liquid with millions of magnetic nanoparticles, the researchers can control the alignment of the rod-shaped bacteria in response to magnetic field strength. The findings offer insights into active matter phys...
Researchers propose that lunar swirls are caused by subsurface magma, which creates a magnetic anomaly. The team's experiments show that ilmenite can react and form iron metal under the right conditions, producing a magnetizing effect.
Physicists have achieved a record-setting level of electron mobility in a thin film of ternary tetradymite, a class of mineral found in gold and quartz deposits. The material's high electron mobility makes it suitable for efficient thermoelectric devices that convert waste heat into electricity.
Researchers at Pohang University of Science & Technology (POSTECH) made a small change to develop highly efficient SOT materials. By creating an imbalance in the spin-Hall effect, they controlled magnetization switching without magnetic fields, achieving 2-130 times higher efficiency and lower power consumption than known single-layer ...
Researchers designed a hybrid metamaterial slab for cardiac pacemakers, achieving an efficiency of 62.39% at 20mm transmission distance. The structure also showed superior magnetic leakage shielding performance in finite element simulations.
Researchers have discovered unusual transport phenomena in ultra-clean SrVO3 samples, contradicting long-standing scientific consensus. The study's findings challenge theoretical models of electron correlation effects and offer insights into the behavior of transparent metals.
Researchers discovered a rotating, magnetic wind that helps the galaxy's central supermassive black hole grow, similar to the birth of stars and planets. The study provides new clues to solving the mystery of how supermassive black holes grow, with potential implications for understanding galaxy evolution.
Researchers at Chalmers University of Technology discovered a powerful rotating magnetic wind in galaxy ESO320-G030, suggesting its role in supermassive black hole growth. The study reveals similarities between this process and the birth of stars.
Scientists have discovered unique periodic structures in manganese germanide that behave like magnetic monopoles and antimonopoles. The researchers studied the collective excitation modes of these structures, revealing a way to experimentally determine their spatial configuration.
Researchers at PPPL have found a new mechanism that reduces the risk of damage to tokamak vessels by spreading exhaust heat across a larger area. The discovery challenges previous assumptions about plasma turbulence and its impact on the vessel's performance.
Researchers at TU Graz have calculated that metal phthalocyanine molecules generate tiny magnetic fields when irradiated with circularly polarized infrared light. The team aims to experimentally prove the principle, which could lead to high-precision optical switches for quantum computer circuits.
Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.
Scientists have identified the mysterious origins of the 'slow' solar wind using data from Solar Orbiter's first close journey to the Sun. The slow wind is thought to originate from areas where open and closed magnetic field lines meet, allowing it to escape into space through a process of breaking and reconnection.
Researchers uncover possible origins of sun's engine, the solar dynamo, which drives sunspots and solar storms. The study reveals that the dynamo may begin in the sun's outermost layers, contradicting decades-old theories.
Researchers have discovered that the sun's magnetic field is generated about 20,000 miles below its surface, contradicting previous theories. This finding helps scientists better understand the sun's dynamic processes and could lead to more accurate forecasts of powerful solar storms.
A new study suggests that the sun's magnetic field could arise from instabilities in the outermost layers of the sun, rather than deep within. This finding may enable scientists to better forecast solar activity and space weather.
Researchers at STAR detector observe charged-particle deflection pattern caused by induced electric current in quark-gluon plasma, providing proof of magnetic fields' existence and a new method to measure conductivity. This discovery may aid in unraveling phase transition mysteries between QGP and nuclear matter.
Researchers have discovered a new phenomenon called the Topological Kerr Effect in two-dimensional quantum magnets. The study uses low-temperature magnetic field microscopy and imaging systems to reveal distinctive 'cat ear'-shaped prominences resembling the electrical topological Hall effect in magnetic skyrmion systems.
Researchers at ETH Zurich directly detected electron vortices in graphene using a high-resolution magnetic field sensor. The vortices formed in small circular disks with different diameters and were observed to reverse the flow direction.
A head-mounted device generating an ultra-low frequency magnetic field has improved symptoms of four male patients with major depressive disorder. The study suggests that future trials may offer a safe and non-invasive way to treat depression.
A team of researchers from the University of Rochester has uncovered evidence that a weak magnetic field millions of years ago may have fueled the proliferation of life. The study suggests that fluctuations in Earth's ancient magnetic field led to shifts in oxygen levels, enabling more advanced life forms to emerge.
Researchers found that a weak magnetic field coincided with significant oxygen increase in the atmosphere and oceans between 591-565 million years ago, supporting evolution of complex organisms. This weakening led to increased hydrogen escape, resulting in more oxygen and potentially driving animal radiation during Ediacaran Period.
A new sensor developed at the University of Copenhagen and Hvidovre Hospital can detect errors in MRI scans using laser light and gas, paving the way for better, cheaper, and faster scans. The sensor works by measuring changes in the magnetic field, allowing for corrections to be made and images to be made accurate.
Researchers analyzed asteroid Ryugu samples to study magnetic and physical bombardment environment in interplanetary space. The investigation revealed changes likely caused by micrometeoroid bombardment, providing insights into the solar system's early stages.
Researchers developed nanodots with single ferroelectric and ferromagnetic domains using multiferroic material BFCO, enabling energy-efficient writing and reading operations. The smaller nanodot showed a single-domain structure, while the larger one exhibited multi-domain vortex structures, demonstrating strong magnetoelectric coupling.
Researchers at Penn State have made light effectively experience a magnetic field within a photonic crystal structure. This breakthrough could lead to more efficient lasers and other photonic technologies by increasing the interaction between light and matter.
Researchers have developed a method to create and repurpose artificial hairs with magnetic properties, enabling the control of motion at room temperature. The technique involves programming and reprogramming the magnetization of the magnetic particles in the cilia, allowing for changes in their behavior.
Researchers have found ancient rocks in Greenland that retain signatures of a magnetic field with a strength of at least 15 microtesla, extending the magnetic field's age by 200 million years. The discovery sheds light on the planet's early conditions and may have played a critical role in making Earth habitable.
Scientists have recovered a 3.7-billion-year-old record of Earth's magnetic field, revealing it to be remarkably similar to today's field. The study provides the oldest estimate of the strength of Earth's magnetic field derived from whole rock samples.
Researchers have developed a magnetic coil array called MagPatch that can stimulate individual neurons with precision. The device uses soft magnetic materials to boost the magnetic field, reducing the need for high current levels.
A new paper argues that Venus, with its surface temperatures hot enough to melt lead and a toxic atmosphere, can provide valuable lessons about the potential for life on other planets. The study highlights the importance of understanding the conditions that make Earth habitable, as well as the risks of runaway greenhouse effects.
Researchers developed a new measurement method that significantly improves the accuracy of electrical resistance measurements, leveraging the Quantum Anomalous Hall Effect. The method allows for precise measurements at high currents and without an external magnetic field, making it suitable for advanced applications.
Researchers have successfully determined the size and atmospheric composition of exoplanet WASP-39b by including a star's magnetic field in model calculations. The study improves upon previous observations by providing a more precise understanding of the planet's signal in light curves.
Researchers discovered a rare binary system with a magnetic massive star, surrounded by a beautiful nebula. The more massive star appears younger than its companion, suggesting a merger event that created the surrounding cloud.
EPFL researchers have developed a novel approach to boost electrocatalysis using magnetic fields, enhancing the movement of reactants and improving reaction efficiency. This innovation has significant potential to revolutionize energy conversion technologies and increase sustainable fuel production, mitigating climate change.
Researchers used a powerful framework called THEMIS to generate clear images of the Sagittarius A* (Sgr A*) black hole, revealing its plasma ring and magnetic field lines. The study provides strong evidence for the need of strong magnetic fields in the accretion disk to push accreting plasma around.
Scientists unveil strong and organized magnetic fields near Sagittarius A* black hole, strikingly similar to M87*, suggesting common traits among all black holes. The discovery hints at a hidden jet in Sgr A* and reveals the importance of magnetic fields in black hole interactions.
Researchers observed strong, twisted, and organised magnetic fields near the black hole at the centre of the Milky Way galaxy. The findings suggest that strong magnetic fields may be common to all black holes.
Researchers analyze data from another series of observations to study Sgr A*, finding that strong and ordered magnetic fields are critical to how black holes interact with gas and matter around them. The discovery enhances theoretical models and simulations, refining our understanding of black hole dynamics near the event horizon.
Researchers detect weak fluctuations in superconductivity and reveal a quantum critical point where quantum fluctuations are strongest. The discovery sheds light on the origin of an anomalous metallic state in magnetic fields.
Researchers at Tohoku University propose a new concept for magnet-based memory devices using helical magnets' chirality to resolve crosstalk issues. The devices can be written and read out at room temperature, offering potential for high-density, non-volatile storage.
Researchers identified the origin of a discrepancy between experimental and theoretical values of the muon's magnetic moment. The study found that lattice QCD and electron-positron collision data disagree, highlighting the need to resolve this puzzle.
Researchers at OIST create a floating platform using graphite and magnets that operates without external power, opening potential for ultra-sensitive sensors and precision measurements. The new material, derived from graphite, overcomes energy loss challenges, allowing the platform to achieve 'frictionless' motion.
An international team has gained insights into special states of matter through experiments at BER II, finding a spin-nematic phase formed under extreme magnetic fields. The results suggest a condensate of bosonic Cooper pairs, analogous to superconductivity.
Scientists identify conditions for HTS magnets to safely operate without risk of sudden heat build-up, using advanced temperature monitoring systems. They also plan to test their approach on actual coils wound with HTS conductor material.
Researchers at MIT and Commonwealth Fusion Systems confirm their high-temperature superconducting magnet design meets the criteria for a compact fusion power plant. The successful test marks a significant milestone in fusion research, with the potential to usher in an era of virtually limitless power production.
The Perseverance rover has collected and remotely determined the original orientations of most bedrock samples to date. This breakthrough will help scientists answer key questions about Mars' past, including its magnetic field, water flow, and tectonic processes.
ICIQ researchers observe the direct impact of external magnetic fields on the oxygen evolution reaction during water electrolysis to produce green hydrogen. The magnetic field enhances kinetics by favoring larger accumulation of active NiOOH species at the electrode surface.
A research team has discovered a material that exhibits non-linear Hall effect, which could be applied in technologies for controlled use of terahertz high-frequency signals on electronic chips. The thin-layer films can be applied to plastic substrates and control the effect through micro-fabrication.
Researchers have discovered a unique signature of planetary material ingestion on the surface of a white dwarf star, WD 0816-310. The team observed a concentration of metals imprinted on the star's surface, indicating that the magnetic field played a key role in this process.
Scientists at STAR collaboration observe magnetic field's impact on charged particles, providing new insight into quark-gluon plasma's electrical conductivity. The findings give scientists a way to study QGP's fundamental properties, shedding light on the universe's most powerful magnetic fields.
Researchers at MIT successfully printed compact, magnetic-cored solenoids using a customized multimaterial 3D printer. The printed solenoids can withstand twice as much electric current and generate a magnetic field three times larger than other 3D-printed devices.
Researchers at MIT have observed a rare electronic state in which electrons become fractions of their total charge without the need for external magnetic fields. This effect, known as the fractional quantum anomalous Hall effect, has significant implications for the development of topological quantum computing.
Researchers at HZDR have discovered a new superconductor that remains stable under extremely high magnetic fields. This breakthrough offers potential for groundbreaking technological advancements. The material, UTe2, exhibits spin-triplet superconductivity and can withstand magnetic fields up to 73 tesla, setting a record.
Researchers developed a wireless method to effectively reduce motor dysfunction in people with Parkinson's disease using magnetogenetics. The treatment showed improved motor function and no significant damage in and around the brain, suggesting it could be a safer alternative to traditional implanted DBS systems.
Researchers at MIT developed a battery-free sensor that can harvest energy from its environment, allowing for long-term data collection in remote settings. The sensor uses a network of integrated circuits and transistors to store and convert energy efficiently, eliminating the need for batteries.
A team of astronomers created the first-ever 3D map of magnetic field structures within a spiral arm of the Milky Way galaxy, showing that magnetic fields break away from the general picture and impact star-forming regions. The findings suggest that magnetic fields played a role in creating our own solar system.
A new study proposes that dark matter mini-halos scattered throughout the cosmos could serve as probes for primordial magnetic fields. The researchers suggest that if these fields are indeed primordial, they could cause an increase in dark matter density perturbations on small scales.