Articles tagged with Magnetic Fields
The DOE/Princeton Plasma Physics Laboratory has predicted a far larger and less damaging heat-load width for the full-power operation of ITER, contradicting previous estimates. The new formula produces a forecast that is over six-times wider than those developed by simple extrapolation.
Scientists at UCL and George Mason University have located the source of potentially hazardous solar particles for the first time, finding they originate from plasma confined close to the top of the Sun's chromosphere. This discovery aims to improve forecasts of solar storms and reduce risks to satellites and electronic infrastructure.
Rice University physicists have discovered a way to trap the world's coldest plasma in a magnetic bottle, advancing research into clean energy, space weather, and astrophysics. The ultracold plasma has applications for studying solar wind interactions, fusion power, and understanding plasma behavior in complex locations.
Researchers from Rice University and international collaborations discovered a nonmagnetic quantum material exhibiting the Hall effect without an applied magnetic field. The effect is more than 1,000 times larger than expected, revealing the role of topology in strong correlations and potential applications for quantum computation.
Researchers at UC Berkeley developed a new way to harness light waves, enabling the simultaneous transmission of vast amounts of data. The technology uses twisted laser beams and exploits the property of orbital angular momentum, which offers exponentially greater data capacity.
Researchers find giant Hall effect in material Ce3Bi4Pd3, exceeding theoretical predictions by a thousand times. The effect is caused by complex electron interactions and the Kondo effect, leading to unexpected potential for next-generation quantum technologies.
Scientists at Cornell University have successfully created a material structure that simultaneously exhibits superconductivity and the quantum Hall effect. This breakthrough could enable the development of more efficient electronics, such as data centers cooled to extremely low temperatures.
The CLASP2 space experiment has mapped the Sun's magnetic field in the outer layers of the solar atmosphere. This achievement provides new insights into the origin of violent solar activity and its effects on Earth's magnetosphere.
The CLASP2 sounding rocket experiment charted the magnetic field strength all the way up to the top of the chromosphere, a long-sought goal. This breakthrough brings scientists closer to understanding how magnetic fields heat the solar corona.
Scientists have developed a new modelling technique to simulate the effects of both gravity and magnetism on planetary formation. The study suggests that magnetic fields can make it difficult for growing planets to accumulate mass beyond a certain point, resulting in a higher frequency of intermediate-mass planets.
Researchers developed a new strategy to destroy cancer cells using magnetic nanoparticles and constant magnetic fields. The combined effect of nanoparticles and magnetic fields reduced the viability of leukemia cells while sparing healthy cells, suggesting a selective therapeutic effect.
Researchers use innovative technique called 'quantum squeezing' to dramatically speed up the search for dark matter in the lab. The team hopes to find axion particles, which are likely billions of times smaller than electrons and could explain the existence of dark matter.
Researchers use the Z machine to apply extreme gravitational pressures on super-Earths, determining which might support life. A data-supported table reveals when a planet's interior would be solid, liquid or gaseous under various pressures and temperatures.
Researchers developed more efficient magnets to control magnetic nanoparticles for targeted drug delivery. Non-symmetrical magnet combinations showed almost ten times stronger magnetic force than regular cylindrical magnets, which could potentially apply to humans too.
Researchers developed a template-free technique to fabricate flexible cilia mimicking biological functions, with applications in transporting substances into cells or directing fluids. The cilia's motion can be controlled by a magnet, and their length can be varied from 10 to 100 microns.
Researchers observed complex magnetic field behavior in a 'radio-loud' magnetar, deviating from previous theories. The findings suggest that the radio pulses originate from loops of magnetic field lines connecting two closely spaced poles.
A new type of rocket thruster could take humankind to Mars and beyond by exploiting the mechanism behind solar flares. The device accelerates plasma particles using magnetic reconnection, a process found throughout the universe, to generate high velocities.
Scientists have gained new insight into the solar structures that create the Sun's flow of high-speed solar wind. Using NASA data and cutting-edge image processing, researchers discovered plumelets, smaller strands of material within solar plumes, which shape the solar wind's characteristics.
Researchers detected high-energy X-ray emissions around a group of neutron stars, known as the Magnificent 7, which could be attributed to theorized axions or dark matter. The study uses supercomputing and data analysis to predict axion production in neutron star cores.
Physicists Luca Comisso and Felipe Asenjo propose a new method to extract energy from rotating black holes by breaking and reconnecting magnetic field lines. This process could accelerate plasma particles to negative energies, allowing for massive amounts of energy extraction with an efficiency of up to 150%.
Astronomers have detected a signature of magnetar outbursts in nearby galaxies, allowing for more precise localization and study of these extreme stars. The discovery provides new insights into the behavior of magnetars, which are thought to be the source of some types of short gamma-ray bursts.
Physicists at Princeton University have observed quantum oscillation in an insulator, a phenomenon typically seen in metals. The discovery hints at the existence of neutral fermions and challenges the long-held distinction between metals and insulators.
Researchers at KAUST have developed a computational algorithm to simulate ferrofluid behavior, enabling more accurate predictions of the liquid's response to a magnet. By simulating only the surface layer of the ferrofluid, they were able to reduce computational complexity and accurately reproduce complex spike patterns.
A team of researchers has developed a novel approach to measuring magnetic fields using 'damaged' polymer optical fibers. The sensor can detect small magnetic field changes, several hundreds of times smaller than conventional methods, and is suitable for applications in electric power systems.
Researchers from Waseda University create a way to transform logical Ising models into physically implementable ones with lower bit widths. This approach uses auxiliary spins to achieve the desired transformation without changing the solution.
Researchers have created a new adhesive that can be cured using a magnetic field, offering a more efficient alternative to traditional methods. The 'magnetocuring' glue has the potential to revolutionize industries such as sports equipment, automotive and electronics manufacturing.
Researchers predicted the corona's appearance using NASA data, but the actual appearance was hazier and calmer than expected due to changes in the Sun's magnetic field. The team made adjustments for the Sun's increasing activity, which affects space weather.
Scientists create tiny Janus balls that change color under a magnetic field, potentially used in inks for anti-counterfeiting tags. The technology could help manufacturers stay one step ahead of sophisticated counterfeiters.
A novel multiple-cell cavity design, dubbed 'pizza cavity,' has been developed to address the challenges of searching for axion dark matter in high-frequency regions. The new design improves detection efficiency and allows for faster scanning of frequency ranges compared to conventional methods.
Researchers at Northwestern University have developed a soft robotic material that can walk at human speed, pick up cargo, and transport it to a new location. The material is activated by light and responds to external magnetic fields, making it ideal for use in aquatic environments.
A UNSW study demonstrates all-electrical spin-to-charge conversion without magnetic field, enabling fast detection of spin accumulation in strongly spin-orbit coupled materials. The non-linear method facilitates orders of magnitude faster detection and time-resolved read-out down to 1 nanosecond resolution.
A team of researchers has analyzed data to infer the nature of compact object orbiting within LS 5039, the brightest gamma-ray binary system in the Galaxy. The team suggests that particle acceleration process is caused by interactions between dense stellar winds and ultra-strong magnetic fields of a rotating magnetar.
A new agglutinate, reprogrammable, and disintegrable magnetic spray has been developed to transform inanimate objects into millirobots with high adaptivity for various biomedical applications. The spray can be repurposed by adjusting its magnetization direction, allowing the creation of diverse locomotion modes.
Researchers from the University of Illinois Chicago have discovered four major factors influencing the motion of magnetic particles in fluids, including magnetic field strength, particle properties, and electrical charges. This knowledge can be used to improve drug delivery, biosensors, and other applications.
A magnetic spray can be used to turn objects into millirobots that can crawl, walk, or roll on different surfaces. The coated objects are biocompatible and can be disintegrated into powders when needed, demonstrating potential for biomedical applications like catheter navigation and drug delivery.
A USask physicist is leading a world-first collaboration to develop a compact, precise magnetometer using diamond-based technology. The new device has potential applications in geological prospecting, medicine, and quantum computing.
Researchers derived an analytical model of optical activity in black phosphorous under an external magnetic field, discovering tunable phenomena. The findings show optical activity conforming to that previously observed in chiral metamaterials and have applications in polarization optics, stereochemistry, and molecular biology.
Researchers at Argonne National Laboratory are upgrading a measurement system for the Muon g-2 experiment, which could reveal undiscovered particles. The upgraded system will enable precise measurements of the muon's spin precession rate and magnetic field strength.
The Cornell High Energy Synchrotron Source (CHESS) will build a High Magnetic Field (HMF) beamline with a $32.6M NSF grant, enabling precision X-ray studies of materials in persistent magnetic fields. The partnership with National MagLab and UPR will create a powerful facility for scientific discovery.
Researchers have found a way to circumvent a centuries-old theory that allows them to effectively cancel magnetic fields. This breakthrough has practical benefits for various fields like medicine, quantum technology, and neuroscience.
A team of researchers at the University of Pennsylvania School of Medicine has demonstrated a new method to rebuild complex body tissues using a magnetic field and hydrogels. This technique allows for the creation of engineered tissues with natural tissue-like properties, including a cellular gradient.
Researchers developed a near-infrared/pH dual-responsive drug delivery system using graphitic carbon nitride quantum dots and carbon nanosheets for improved chemotherapy response. The system exhibits light-to-heat conversion and singlet oxygen generation capabilities under single NIR excitation.
A team of scientists developed a mathematical model simulating the disruption of heat distribution by strong magnetic fields, creating hotter and cooler regions that emit x-rays of differing intensity. The findings help explain the observed changes in brightness of magnetars studied over several decades.
Researchers have found a new magnetar with a pulsation period of 1.36 seconds, showing spin-down behavior suggesting rotation-powered pulsar emissions. The discovery reveals a missing link between magnetars and rotation-powered pulsars, providing new insights into neutron stars with high magnetic fields.
Scientists at Osaka University have discovered a novel mechanism, microtube implosion, which generates megatesla-order magnetic fields. This breakthrough is three orders of magnitude higher than what has been achieved in a laboratory, with potential applications in materials science, quantum electrodynamics, and astrophysics.
Researchers found evidence of a quantum spin liquid in ruthenium trichloride, which could lead to new insights into magnetic materials and their applications. The discovery was made using a novel technique called resonant torsion magnetometry, which precisely measures the behavior of electron spins.
A University of Colorado Boulder astrophysicist is searching the light coming from a distant magnetar, PSR J1745-2900, for signs of dark matter. The scientist hopes to detect the faint signals of an axion particle transforming into light.
Researchers found that the nature of the boundary at which an antiferromagnet transitions to disorder depends on its lattice arrangement. Calculations showed subtle differences in transition points between honeycomb and square lattices.
Researchers aim to develop compact and portable NMR devices that can detect metabolic disorders and analyze fuels, biofluids, and food extracts. Dr. Danila Barskiy's new group will focus on zero-to-ultra-low field magnetic resonance technology.
Researchers at Ohio State University have developed soft robots that can be controlled by magnetic fields, allowing for faster and less invasive delivery of medications. The 'soft' component of the robot is crucial, as it eliminates the need for motors, controllers, and tethers.
Scientists create controlled dynamics of colloidal rods on a magnetised chip using mathematical coding, increasing efficiency in research and potential applications in biomedicine and biotechnology. The study paves the way for mini-laboratories to study materials and biochemical agents.
A team of Indian and Japanese physicists have overturned the six-decade old notion that giant magnetic fields in plasma evolve from small scales. Instead, they originate at macroscopic scales defined by the boundaries of electron beams, leading to a new understanding of magnetic fields in astrophysical scenarios and laser fusion.
Researchers from the University of Exeter have discovered a way to manipulate light using a synthetic Lorentz force, enabling photons to mimic charged particle dynamics. By distorting honeycomb metasurfaces, they created artificial magnetic fields that can be tuned using precision photonic devices.
Researchers at the University of Tsukuba have discovered a new explanation for how superconductors recover from temporary exposure to magnetic fields without losing energy. The proposed mechanism involves the presence of a topological quantum number, which allows supercurrents to be switched off without Joule heating.
Researchers developed a theoretical model to predict spectral splitting of excitons in WSe2 under magnetic field. The results provide better understanding of opto-electronic properties and potential applications in quantum technologies.
Physicists develop minuscule superconducting quantum interference device (SQUID) able to detect extremely weak magnetic fields, with potential applications in medicine and research. The device features a complex six-layer stack of individual two-dimensional materials.
Scientists at Princeton Plasma Physics Laboratory have found a novel electrical current that could stabilize fusion reactions, contrary to conventional notions. The discovery sheds light on the fundamental interactions of waves in plasma and has implications for creating fusion energy.
A team of scientists has found a new Hall effect phenomenon in non-magnetic materials, revealing an intrinsic in-plane response that defies classical expectations. The observed effect is attributed to the interplay between Berry curvature and Weyl semimetal properties.
Researchers at Peking University discovered a new type of superconductor that remains stable in ambient conditions, exhibiting large critical magnetic fields and strong spin-orbit coupling. This macro-size system with out-of-plane spin polarization has great potential for superconducting electronic and spintronic applications.
Researchers elucidate a global picture of edge states in Weyl semimetals, revealing how they form closed trajectories under tilted magnetic fields. The study provides new understanding of the three-dimensional quantum Hall effect and its relation to topological properties.