Articles tagged with Magnetic Fields
A Vienna University of Technology team successfully changed the type of magnetism in a single crystal by applying pressure, reducing frustration and increasing temperature of magnetic phase transition. This discovery could lead to novel materials for secure data storage and quantum computers.
Researchers propose that parallel electric fields in the upper atmosphere could produce the colorful emissions of Steve and the picket fence. This unusual process has implications for understanding energy flow between Earth's magnetosphere and ionosphere.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have developed tiny electromagnets made of ultra-thin carbon, graphene, using terahertz pulses. The graphene discs briefly turned into strong magnets, with magnetic fields in the range of 0.5 Tesla, and showed promise for developing future magnetic switches and storage devices.
A new relationship between the Sun's magnetic field and its sunspot cycle has been discovered, enabling scientists to predict when the peak in solar activity will occur. The analysis indicates that the maximum intensity of solar cycle 25 is imminent and likely to occur within a year.
The Telescope Array has detected the second-highest energy cosmic ray ever observed, with an energy equivalent to dropping a brick on your toe from waist height. The Amaterasu particle deepens the mystery of ultra-high-energy cosmic rays, which may follow particle physics unknown to science.
A team of Princeton astrophysicists has conclusively determined that the energy close to the event horizon of black hole M87* is pushing outward, not inward. This finding resolves a longstanding debate within the field and provides new insights into the behavior of black holes.
Researchers from NJIT-CSTR have discovered an extraordinary aurora-like display occurring 40,000 km above a sunspot. The novel radio emission shares characteristics with planetary magnetospheres and potentially opens new avenues for understanding similar phenomena in distant stars with large starspots.
A new study using twisted magnets as computational medium has made brain-inspired computing more adaptable, reducing energy use and potential carbon emissions. The research found that by applying magnetic fields and changing temperature, physical properties of the materials can be adapted to suit different machine-learning tasks.
Researchers at Rice University have discovered a way to transform a rare-earth crystal into a magnet by using chirality in phonons. Chirality, or the twisting of atoms' motion, breaks time-reversal symmetry and aligns electron spins, creating a magnetic effect.
Researchers investigate the interaction between solar wind and the Moon's surface, exploring the formation of lunar swirls and the influence of magnetic fields. The study highlights the importance of interdisciplinary research in understanding the Moon's space environment.
A study reveals that Earth's ionospheric plasma drives geomagnetic storms, disrupting radio signals and GPS. The research helps predict storm impact and contributes to understanding space weather.
Researchers utilized the IXPE telescope to capture the first polarized X-ray imagery of SN 1006, revealing a connection between magnetic fields and high-energy particle outflow. The discovery expands scientists' understanding of supernovae remnants.
Scientists at the University of Würzburg validated an alternate theory proposing the spinaron effect, where individual cobalt atoms exhibit perpetual motion and interact with electrons in a unique manner. This discovery could lead to breakthroughs in magnetic information encoding and transportation, making IT more energy-efficient.
University of Leicester astronomers confirm the existence of an infrared aurora on Uranus, offering clues to its magnetic fields and potential for life. The discovery may also help identify other habitable planets with similar characteristics.
Researchers successfully controlled spin waves by using a superconducting electrode, which acts as a mirror to reflect the magnetic field back to the spin wave. This breakthrough offers an energy-efficient alternative to electronics and opens doors for designing new circuits based on spin waves and superconductors.
Researchers used seismic data to locate and identify a thin layer of molten silicates overlying Mars' metallic core. The discovery reveals a denser and smaller Martian core, aligning with other geophysical data and analysis of Martian meteorites. This finding provides new insights into how Mars formed, evolved, and became a barren planet.
Researchers have discovered a rare electronic state in five-layer graphene, exhibiting both unconventional magnetism and ferro-valleytricity. This multiferroic state could enable ultra-low-power, high-capacity data storage devices for classical and quantum computers.
Scientists have found that magnetic contamination in lunar samples can be easily removed using standard techniques, disproving previous theories. The study's findings suggest that paleomagnetism is a powerful tool for understanding core processes and planetary evolution, enabling the long-term preservation of atmospheres.
Researchers have created a magnetoelectric material that can directly stimulate neural tissue, potentially treating neurological disorders and nerve damage. The material generates an electric signal that neurons can detect, overcoming previous limitations.
A new device design inspires improved integrated circuit designs by visualizing electric current flow lines around sharp bends. The research enables better understanding of heat generation in electronic devices, leading to more efficient circuit creation and reduced risk of overheating.
Researchers discovered magnetic field transport in accretion flow and MAD formation near a black hole, resolving long-standing mysteries. The study reveals the first direct observational evidence for a magnetically arrested disk (MAD) through multi-wavelength observations.
A team of astrophysicists at Northwestern University has successfully simulated the process of a black hole-neutron star merger, which is believed to have produced the unprecedented gamma-ray burst GRB211211A. The simulation reveals that the post-merger black hole launches jets of material from the swallowed neutron star.
Researchers have uncovered a living star, HD 45166, that is likely to become a magnetar, marking the discovery of a new type of astronomical object - massive magnetic helium stars. The star has an incredibly strong magnetic field, 43,000 gauss, and will end its life as a compact core with a magnetic field of around 100 trillion gauss.
Researchers detected distinct 'dwarf pulses' from PSR B2111+46 using the Five-hundred-meter Aperture Spherical radio Telescope. These narrow, weak pulses exhibit a rare reversed spectrum and are produced by one or a few particles generated by pair production in a fragile gap of the pulsar's magnetosphere.
Scientists at NIFS have created a stable and strong High-Temperature Superconducting (HTS) large-current conductor, named STARS, that can be applied to fusion reactors. The new conductor overcomes challenges in twisting and transposing thin wires, achieving higher current densities than Low-Temperature Superconductors.
Researchers have created a new type of conducting polymer with a helically grown structure, which can emit circularly polarized light. The polymer's radicals are arranged in a helical shape and can be aligned into stripe-like structures when exposed to a magnetic field.
Researchers discovered that electrons flow through the bulk of a special type of insulator, rather than at the edges, using magnetic imaging. This finding provides new insights into electron behavior in quantum Hall insulators and informs the development of topological materials for next-generation quantum devices.
Researchers have found an unusual ultrafast motion in layered magnetic materials, which could lead to breakthroughs in high-speed nanomotors for biomedical applications. The discovery was made using cutting-edge ultrafast probes and facilities, revealing a mechanical response across the entire sample.
Scientists have long debated the source of magnetic fields in the universe. New research by Columbia University researchers suggests that turbulent plasma can spontaneously generate these fields, which then amplify and spread across vast distances.
Scientists at North Carolina State University have successfully grown high-quality thin films of the recently discovered superconductor material KTaO3. The researchers found that the material retains its superconducting properties even when exposed to extremely high magnetic fields.
The James Webb Space Telescope has detected hydrogen peroxide on Ganymede's poles and sulfur monoxide on Io, revealing new secrets about Jupiter's Galilean satellites. These findings suggest that charged particles from Jupiter's magnetosphere can alter the surface chemistry of icy moons.
A team of physicists and medical doctors developed a portable Magnetic Particle Imaging (MPI) scanner that can visualize dynamic processes in the human body, such as blood flow, without using radiation. The scanner is designed for real-time endovascular interventions and has the potential to change the field of intervention.
A better way to wirelessly charge over long distances has been developed, utilizing the phenomenon of radiation suppression. The research shows high transfer efficiency, over 80 percent, can be achieved at distances approximately five times the size of the antenna.
Astronomers have discovered a white dwarf star with drastically different faces, composed of hydrogen on one side and helium on the other. The team believes magnetic fields may be responsible for the asymmetric sides, allowing a 'hydrogen ocean' to form where the fields are strongest.
Researchers from Ohio State University found that some low-mass stars have unexpectedly strong surface magnetic fields, which could intensify their radiation for billions of years. This discovery challenges current models of stellar evolution and has important implications for the search for life on other planets.
Researchers have discovered a novel copper protein binding site that shows promise for use in magnetic resonance imaging (MRI) contrast agents, potentially leading to clearer images and improved diagnoses. The new structure displayed highly effective levels of relaxivity, equal and superior to existing Gd(III) agents used in clinical MRI.
Scientists have observed the direct visualization of a zero-field pair density wave in an iron-based superconductor, EuRbFe4As4, without a magnetic field. This discovery paves the way for further research into room-temperature superconductivity and its potential applications.
A team of chemists at UC Riverside has discovered that the distribution of a magnetic field is itself chiral, allowing for the rapid formation of chiral structures. This method has potential applications in sensing and anti-counterfeit technology, such as detecting chiral or achiral molecules linked to certain diseases.
Scientists have invented a smart textile that can sense and measure body movements using nanomagnets. The device is self-powered, stretchy, durable, waterproof, and can be made with a sewing machine for under $3. It converts muscle activities into quantifiable electrical signals sent wirelessly to phone apps.
Researchers found magnetotactic bacteria living on a hydrothermal vent chimney at 2,787 meters below the ocean's surface. The discovery provides clues to the early diversification of bacteria and offers insights into the environment that may support extraterrestrial life.
The Zhurong rover's first 1-km traverse revealed extremely weak magnetic fields on the Martian surface, contradicting previous orbital measurements. This finding suggests that either the crust remained unmagnetized or was demagnetized by a massive impact, providing new insights into early Mars' magnetic, climatic, and interior history.
Researchers have developed a method to stabilize the –1 state of boron vacancy defects in hBN, enabling it to replace diamond as a material for quantum sensing and quantum information processing. The team discovered unique properties of hBN and characterized its material, opening up new avenues for study.
The study found that Earth's magnetic field was stable for over half a billion years, suggesting that mobile plate tectonics may not be necessary for life to originate. The discovery expands our understanding of the conditions necessary for life on Earth.
Scientists have discovered a rare type of white dwarf pulsar, shedding light on stellar evolution and the origin of strong magnetic fields. The newly detected pulsar, J1912-4410, has a size similar to Earth but a mass at least as large as the Sun.
Scientists at the University of Tokyo develop a technique to create nano-sized quantum sensors on measurement targets, enabling high-resolution magnetic field imaging with applications in superconductors and electronic devices. The breakthrough uses boron vacancies or lattice defects in hexagonal boron nitride film, allowing for easy d...
Scientists have discovered that stagnant lid tectonics, not plate tectonics, existed on early Earth, releasing heat and forming continents. This finding contradicts previous assumptions about the role of mobile plate tectonics in life's emergence, suggesting an alternative mechanism was present.
A research group from Tohoku University has made a breakthrough in developing a palladium-based metamagnetic shape memory alloy that exhibits low energy loss, even at low temperatures. The new alloy significantly reduces energy loss compared to existing materials, making it suitable for applications such as magnetic sensors and actuators.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have discovered a potential therapeutic approach for curing neurodegenerative diseases using magnetic fields. In vitro trials showed that damaged motor neurons can be restored by exposure to magnetic fields, leading to axonal transport and regeneration of mitochondria.
The CALorimetric Electron Telescope (CALET) study found that the movement of cosmic rays is affected by the Sun's magnetic field, causing fluctuations in galactic cosmic rays reaching Earth. The research indicates that electrons are more susceptible to solar modulation than protons.
The Parker Solar Probe has detected streams of high-energy particles that match supergranulation flows within coronal holes, suggesting these are the origins of the fast solar wind. The solar wind's charged particles were accelerated by magnetic reconnection within funnel structures on the sun's surface.
Researchers used data from NASA's Parker Solar Probe to explain how the solar wind surpasses speeds of 1 million miles per hour. The energy released from the magnetic field near the sun's surface drives the fast solar wind, comprising ionized particles flowing outward from the sun.
Researchers at Cornell University have developed a method to control the behavior of swarming microrobots by varying their size. By mixing different sizes of microrobots, they can self-organize into diverse patterns that can be manipulated when a magnetic field is applied. This technique may help inform future applications such as targ...
Scientists at Aalto University and MPS used petascale supercomputers to simulate the Sun's magnetic field, finding evidence for a small-scale dynamo that challenges conventional understanding. This discovery could lead to improved predictions of major solar events, providing vital extra time for preparation.
Researchers have developed a wearable brain scanner that can measure brain function in people who are standing and walking. This breakthrough could help diagnose conditions such as Parkinson's Disease, stroke, and concussion. The system uses small sensors to detect magnetic fields generated by cellular activity in the brain.
Researchers developed a scalable approach to synthesize ferromagnetic single-atom spin catalysts, which exhibit interatomic quantum spin exchange interaction and induce local magnetic moments. The Ni1/MoS2 SASC demonstrates a dramatic enhancement of OER magnetocurrent by 3,000% under a mild magnetic field.
Researchers have found a new superconducting state in an Ising superconductor, which can resist magnetic fields and has the potential to control devices such as transistors. The discovery, published in Nature, was made possible by creating a device that can switch between different protection modes using an electric field.
Researchers have imaged a double-lobed structure resembling Jupiter's radiation belts around an ultracool dwarf, revealing the presence of high-energy electrons trapped in its magnetic field. This discovery provides a new method for assessing the shapes of magnetic fields on brown dwarfs and exoplanets.
Researchers have identified extreme field reversals around FRB 20190520B, a persistently active repeating Fast Radio Burst. This finding provides insights into the turbulent magnetized environment surrounding the cosmic explosion, which may be caused by signal passage through a companion's halo.
Scientists at the University of Electro-Communications successfully measured the effects of an ultra-high magnetic field on a transition metal oxide, discovering signs of a new magnetic superfluid state. This achievement has significant implications for spintronics technology and potential applications in quantum computing.
A Cornell astrophysicist explains how the Imaging X-ray Polarimetry Explorer (IXPE) satellite detected polarized X-rays from a magnetar, revealing 'photon metamorphosis' – a transformation of X-ray photons. The phenomenon is a natural consequence of quantum electrodynamics under strong magnetic field conditions.