Articles tagged with Magnets
Researchers discover a material that can transform from nonmagnetic to magnetic at room temperature, enabling the creation of chameleon magnets. These materials have the potential to revolutionize computing by providing tunable and reprogrammable transistors.
New research reveals that bubbles in the fabrication process of high-temperature superconductor Bi2212 limit its critical current density, blocking connectivity and reducing electrical resistance. Densification of filaments before melting could help eliminate bubble formation and improve material performance.
Researchers at NIST created nanomagnets with egg-like shapes to study their effects on magnetic properties. The shape distortions led to complex wave patterns and frequency shifts, which can be harnessed for developing more reliable random-access memories (RAM) that reduce processor power needs.
Researchers created mini magnetic disks with slanted edges, which favor the formation of tiny magnetic vortices. This allows for efficient data processing and reduced power consumption compared to traditional memory storage systems.
A study has demonstrated the safety and feasibility of using a magnetic maneuverable capsule to visualize the gastric mucosa in healthy volunteers. The capsule was well-tolerated and provided excellent visualization of the stomach lining, with 75% of the gastric mucosa visualized in most subjects.
Researchers at Brown University have developed a magnetic pill system that can safely hold pills in place in the intestine where they need to be absorbed into the bloodstream. The system uses an external magnet to sense the position of the pill and apply precise forces to keep it in place.
The ALPHA collaboration has successfully trapped and stored antihydrogen atoms for nearly two-tenths of a second. By comparing their energy levels to those of ordinary hydrogen, researchers aim to test the symmetry of nature and better understand how antimatter behaves.
The NSF grant will support the design and construction of a portable spectrometer to work with a powerful new 36 tesla magnet. This will enable researchers to perform transformative science in an unexplored magnetic-field range for applications such as biological tissues and battery materials.
A study on single-molecule magnets may lead to breakthroughs in molecular spintronics, a field combining electronics with spin manipulation. Researchers have better understood the inner level structure of these tiny magnets, which could enable practical applications for quantum computation and information storage.
Ronald Reagan UCLA Medical Center has been redesignated as a Magnet hospital by the American Nurses Credentialing Center, recognizing its excellence in nursing services and patient care. The designation is a testament to the hospital's commitment to delivering high-quality care.
Rice physicists Qimiao Si and Seiji Yamamoto create a theoretical model to understand the quantum quirks of high-temperature superconductors and ferromagnetism. Their model predicts the origins of metallic ferromagnetism, providing a rigorous answer to a long-standing question in condensed matter physics.
The University of Maryland will be the only academic institution in the US to possess a 950 MHz NMR spectrometer, enabling researchers to study large proteins and interactions with unprecedented resolution. The instrument will facilitate studies of protein assemblies, ubiquitin marking, and cellular function.
Researchers from Ohio State University have achieved the highest-resolution MRI scan of a magnet, revealing its magnetic properties at the nanoscale. This breakthrough could lead to advancements in data storage and biomedical imaging, as well as more efficient computer chips and devices.
Scientists at Ohio State University have successfully tested a new type of computer memory that uses the spin of electrons to store data. This innovative technology, known as spintronics, has the potential to increase data storage capacity, reduce power consumption, and enable more portable electronics.
Researchers at Rice University discovered that strong magnetic fields can transform highly conductive carbon nanotubes into semiconductors. By applying a magnetic field, a band gap opens up and the material becomes an insulator.
A new magnet system with a 21-tesla superconducting magnet will be built at Florida State University, enabling more precise analysis of complex samples and advancing the field of chemical analysis. The system is expected to yield major innovations in petroleomics, proteomics, and biofuels analysis.
A researcher at North Carolina State University has developed a revolutionary computer chip storing an entire library's worth of information on a single square inch. The breakthrough uses magnetic nanodots, allowing for precise orientation and reliable data reading/writing.
A new magnetic tuning method has been developed to improve the storage capacity of next-generation computer hard drives. The method, reported in the Proceedings of the National Academy of Sciences, enables writing, storage, and readout at a fixed temperature by tuning the softness of the magnet with an external magnetic field.
A new experiment has confirmed that a levitating magnet can create a dense plasma, a crucial step in achieving fusion reactions. The findings offer a potential new path to fusion energy, which could provide a long-term solution to the planet's energy needs without contributing to global warming.
The NIST magnetic connector eliminates leakage and improves flexibility in microfluidic systems, making it suitable for various applications. Researchers demonstrated the viability of their magnetic connector in a liposome generation device with no visible leakage.
The University of Delaware has received a $4.4 million grant from ARPA-E to develop stronger, more efficient permanent magnets for various industries. The project aims to identify new materials that can result in magnets twice as strong as current ones.
Researchers at Duke University created a non-linear device that can convert a range of vibrations into electricity, improving efficiency over traditional linear devices. This technology has the potential to power small electronic devices, such as pacemakers and cardiac defibrillators, and even sensors in ocean buoys and spacecraft.
A team at NIST has discovered a large-scale compound that behaves like magnetic monopoles, enabling the testing of theoretical predictions about these elusive particles. The researchers created this compound by cooling a specific material to nearly absolute zero, forming spin ice crystals with balanced spins.
Researchers found that graphite exhibits permanent magnetic behavior due to interlayer coupling of grain boundary regions, forming 2D networks. This discovery opens up new possibilities for spintronics and biosensor applications in carbon-based materials.
Researchers from UAB design a device called a dc metamaterial, making objects invisible under certain light by creating a zero magnetic field inside while keeping the exterior field intact. This innovation brings humanity closer to achieving invisibility.
A physicist at Brookhaven National Laboratory has developed a compact and cost-effective gantry design for delivering tumor-killing particle beams, reducing weight and size by up to 100 times. This new design could make precision particle therapy available to more cancer patients worldwide.
A new study by Cincinnati Children's Hospital Medical Center reveals that magnets in children's toys can cause extensive medical complications worldwide. Most children who swallow multiple magnets do not receive timely treatment, leading to severe problems and even death.
Researchers have discovered a new mathematical framework, superadiabaticity, to optimize magnetic resonance pulse sequences in MRI scans. This breakthrough could lead to sharper images, more informative scans, and potentially even portable MRI machines.
Researchers found that 14 out of 60 patients experienced detectable interference when MP3 headphones were placed near their implanted devices. Prolonged exposure to high magnetic fields can cause pacemakers to deliver signals without regard to the patient's heart rhythm, while defibrillators may temporarily deactivate.
Physicists at Ohio State University have developed a new kind of MRI technique that can image the inside of extremely tiny magnets, enabling potential applications in computer memory and biomedical research. The technique combines three technologies to create high-resolution images of individual magnets.
Researchers have made a breakthrough in understanding how copper-oxide materials become superconductors. By using high magnetic fields, they were able to probe the underlying electronic structure and reveal the location of 'pockets' of doped carriers. This discovery sheds light on the interplay between magnetism and superconductivity.
Researchers at NIST and NIH have demonstrated proof of principle for a new approach to MRI using customized microscopic magnets that can be injected into the body. These 'smart tags' can identify particular cells, tissues, or physiological conditions by emitting specific optical colors.
Researchers at Florida State University have discovered a novel superconducting material that operates at relatively high temperatures and tolerates high magnetic fields, making it suitable for a range of applications. The discovery offers promise for improving MRI machines, research magnets, and electric motors.
Researchers have designed a high-performance permanent magnet alloy that operates with good magnetic strength at 200 degrees Celsius. The new alloy, which replaces pure neodymium with a mixed rare earth, has a lower temperature coefficient, making it suitable for electric drive motors in the automotive industry.
Scientists at Boston Children's Hospital have created a new technology that uses magnetic fields to control cellular signaling, mimicking the binding of drugs or hormones. This innovation has the potential to lead to finely-tuned but noninvasive treatments for various diseases.
Researchers at UVA discovered that applying a moderate static magnetic field after an inflammatory injury can significantly reduce swelling. The study suggests that magnets could be used as an alternative to ice packs and compression for everyday sprains and bruises, with potential benefits for worker productivity and quality of life.
A meta-analysis of 9 randomized trials found that static magnets have no effect on pain scores for patients with rheumatoid arthritis and fibromyalgia. However, the study suggests that further research is necessary to explore potential benefits for people suffering from osteoarthritis.
A team of scientists has found a way to switch a material's magnetic properties from 'hard' to 'soft' and back again. This breakthrough could lead to new ways of controlling electromagnetic devices. The research, published in Nature, used a magnet to be 'tuned' by subjecting it to a second magnetic field.
Researchers discovered a novel magnetic material that behaves differently from regular magnets, exhibiting string order and quantum phase coherence. The findings have strong implications for designing devices and materials for quantum information processing.
The Linac Coherent Light Source (LCLS) will be the world's first X-ray free electron laser, producing pulses of light one billion times brighter than current sources. The device will enable scientists to discover new states of matter and probe chemical reactions in real-time.
Physicists at the University of Florida propose a redesign to improve the detection of axions, a candidate for dark matter. The new design uses Fabry-Perot cavities to produce more photons, increasing the experiment's sensitivity by a factor of 10 compared to solar-based experiments.
The new magnet will be the world's strongest for neutron experiments, allowing scientists to study high-temperature superconductors and hydrogen structure in various materials. It is part of a $23.1-million project funded by the German Federal Ministry for Education and Research.
The French CNRS and CEA teams collaborated closely in constructing the LHC, assembling 392 quadripole magnets to guide beams through the tunnel. The technology developed during this collaboration is transferable to other equipment currently being studied or built.
Researchers at UT Southwestern Medical Center have developed a Magnetic Anchoring and Guidance System that uses magnets to attract and manipulate laparoscopic surgical tools. This new technique allows for magnetically maneuvering laparoscopic instruments inserted into the abdominal cavity through the bellybutton or throat.
Researchers have discovered unique properties in a molecular magnet that could significantly increase the resolution of MRIs, leading to more accurate diagnoses. The new material, Fe8, is non-toxic and water-soluble, making it safe for injection into the body.
A groundbreaking study at UCSF Children's Hospital aims to correct pectus excavatum, a congenital chest deformity, using a magnetic procedure. The 3MP technique uses magnets to gradually realign the breastbone and chest wall, offering a potential alternative to invasive surgery.
A research team at Northwestern University has identified Bi-2212 as a suitable material for the new wires needed to build a 30 Tesla magnet, a significant improvement over current materials. The findings set a speed limit for high-temperature superconductivity, which could enable powerful magnets without helium cooling requirements.
Researchers at NIST create molecular nanomagnets that offer consistent design and high contrast, improving MRI imaging. The new agents can be turned on only when bonded to a target molecule or cell, with no toxicity issues.
Researchers found that strong neodymium-iron-boron (NdFeB) magnets can cause interference with cardiac devices like pacemakers and ICDs, potentially leading to fatal consequences for patients. The study recommends caution and warning labels on products containing these magnets.
Researchers found that touch tracking bypasses the brain's cognitive system, allowing participants to perform multiple tasks simultaneously. This breakthrough could help individuals with coordination problems improve their hand movements.
Researchers at FSU's Magnet Lab, in partnership with Brigham Young University, are studying the Influenza Type A virus using advanced NMR technology. They have discovered key components of protein channels that regulate viral gene distribution and reproduction.
The National High Magnetic Field Laboratory will receive a $11.7-million grant to build an innovative magnet that can generate extremely high magnetic fields using less power than traditional magnets. The new magnet will enable unique experiments in nuclear magnetic resonance (NMR) to study proteins, nucleic acids, and other molecules.
Researchers at Lawrence Berkeley National Laboratory have developed a novel laser-based MRI technique that offers enhanced sensitivity and time resolution. The approach uses atomic magnetometry and separates signal encoding and detection steps, enabling optimized sensitivity and reducing costs.
Researchers observe dimensional reduction in Han purple pigment at low temperatures, which affects magnetic waves' behavior and could aid understanding of quantum computers. The discovery provides insights into the quantum mechanics of the universe, potentially explaining mysterious properties of other materials.
Researchers have developed a method to separate two different catalysts from a multi-step chemical reaction done in a single vessel using magnetic nanoparticles. This technique could lead to more efficient production of specialty chemicals and reduce waste, benefiting the pharmaceutical and specialty chemical industries.
The study uses a Fourier transform ICR mass spectrometer to analyze protein molecules and measure changes in receptor dynamics upon binding. This technique enables highly accurate pictures of tiny amounts of protein molecules, offering a powerful way to probe drug-protein interactions.
A team of scientists from Delft University of Technology, Brown University, and the University of Alabama have successfully created a 'spin triplet' supercurrent through a unique ferromagnet. The discovery breaks quantum physics theory by showing that electrons can exist in three quantum states inside the magnet.
Physicists at Penn State University have developed a new method to study frustration in complex systems, including materials with magnetic moments. The researchers created artificial spin ice using electron beam lithography, allowing them to manipulate the strength of frustrated interactions and probe individual elements within the sys...
The grant will support two graduate and five undergraduate students at Prairie View A&M University in Texas, as well as a postdoctoral position at North Carolina A&T University. The magnet lab will provide hands-on research experience for minority researchers, aiming to increase their participation in extreme conditions research.
The Florida State University magnet lab has collaborated with Keithley Instruments to develop a more accurate system for measuring extremely small currents and voltages. The new AC and DC Precision Current Source with Nanovoltmeter will help engineers create breakthrough consumer products and medical devices.