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Current Magnetic Field News and Events, Magnetic Field News Articles.
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Holey graphene as Holy Grail alternative to silicon chips
Novel spintronics applications could stem from introducing holes into graphene to form triangular antidot lattices, granting the material new magnetic properties. (2018-12-19)

Scientists use magnetic defects to achieve electromagnetic wave breakthrough
In a new study, Argonne scientists have created small regions of magnetic defects. When electromagnetic plane waves interact with these defects, they are converted into helical waves, which encode more information for further materials studies. (2018-12-19)

Physicists found a correlation between the structure and magnetic properties of ceramics
The international scientific group studied a correlation between the structure of ceramic materials based on bismuth ferrite (BiFeO3) and their magnetic properties. In their work the scientists theoretically justified the obtained results and determined the factors that affect structural evolution of materials and changes in their magnetic behavior. The work will help create new ceramic materials with given properties. The article of the scientists was published in the Journal of Physics and Chemistry of Solids (2018-12-18)

Mystery of coronae around supermassive black holes deepens
Researchers have used observations from the ALMA radio observatory to measure, for the first time, the strength of magnetic fields near two supermassive black holes at the centers of an important type of active galaxies. Surprisingly, the strengths of the magnetic fields do not appear sufficient to power the 'coronae,' clouds of superheated plasma that are observed around the black holes at the centers of those galaxies. (2018-12-18)

Research finds rings of Saturn are dying
New research shows Saturn's rings are dying at a worst-case-scenario rate. (2018-12-18)

Pressure tuned magnetism paves the way for novel electronic devices
Using very sensitive magnetic probes, an international team of researchers has found surprising evidence that magnetism which emerges at the interfaces between non-magnetic oxide thin layers can be easily tuned by exerting tiny mechanical forces. This discovery provides a new and unexpected handle to control magnetism, thus enabling denser magnetic memory, and opens new and unexpected routes for developing novel oxide-based spintronic devices. (2018-12-17)

NASA research reveals Saturn is losing its rings at 'worst-case-scenario' rate
New NASA research confirms that Saturn is losing its iconic rings at the maximum rate estimated from Voyager 1 and 2 observations made decades ago. The rings are being pulled into Saturn by gravity as a dusty rain of ice particles under the influence of Saturn's magnetic field. (2018-12-17)

Physicists studied the influence of magnetic field on thin film structures
A team of scientists from Immanuel Kant Baltic Federal University together with their colleagues from Russia, Japan, and Australia studied the influence of inhomogeneity of magnetic field applied during the fabrication process of thin-film structures made from nickel-iron and iridium-manganese alloys, on their properties. These systems can be used in various types of magnetic field sensors. The article of the team was published in the Journal of Magnetism and Magnetic Materials. (2018-12-17)

New properties of sulfur atom discovered
2019 will be, as proclaimed by the UN, the 'International Year of the Periodic Table of Chemical Elements', in commemoration of the 150th anniversary of its creation. Researchers from the Faculty of Science of the University of Malaga (UMA) have recently revealed new properties of one of its key elements: sulfur. (2018-12-14)

Tangled magnetic fields power cosmic particle accelerators
Magnetic field lines tangled like spaghetti in a bowl might be behind the most powerful particle accelerators in the universe. That's the result of a new computational study by researchers from the Department of Energy's SLAC National Accelerator Laboratory, which simulated particle emissions from distant active galaxies. (2018-12-13)

Physicists edge closer to controlling chemical reactions
A team of researchers has developed an algorithm for predicting the effect of an external electromagnetic field on the state of complex molecules. The new algorithm, presented in a paper in The Journal of Chemical Physics, enables researchers to look inside large polyatomic molecules, observe and potentially control electron motion therein. (2018-12-10)

Supercomputers without waste heat
Physicists from the University of Konstanz explore superconductivity for information processing. (2018-12-07)

Iron-rich lamellae in the semiconductor
There is often a pronounced symmetry when you look at the lattice of crystals: the atoms are uniformly arranged. This behavior was also to be expected by a crystal, which physicists from Germany and Poland produced: a compound from an indium arsenide semiconductor, spiked with some iron. The material, however, did not adhere to perfect symmetry. The iron formed two-dimensional, lamellar-shaped structures in the crystal that lent the material a striking property: it became magnetic. (2018-12-07)

Experiments at PPPL show remarkable agreement with satellite sightings
Feature describes striking similarity of laboratory research findings with observations of the four-satellite Magnetospheric Multiscale Mission that studies magnetic reconnection in space. (2018-12-07)

Harnessing the power of 'spin orbit' coupling in silicon: Scaling up quantum computation
Research teams from UNSW are investigating multiple pathways to scale up atom-based computing architectures using spin-orbit coupling -- advancing towards their goal of building a silicon-based quantum computer in Australia. (2018-12-07)

A new 'spin' on kagome lattices
The kagome ferromagnet Fe3Sn2 exhibits an electronic state that couples unusually strongly to an applied magnetic field that can be rotated to point in any direction of a 3-dimensional space, revealing that magnetization drives -- in quantum scale -- a 'giant' energy shift within the material, an international team of researchers has found. (2018-12-07)

Reflecting antiferromagnetic arrangements
An x-ray imaging technique could help scientists understand the magnetic structure of promising materials for 'spin'-based electronics. (2018-12-05)

First observation of a square lattice of merons and antimerons
Scientists have, for the first time, observed a square lattice of merons and antimerons -- tiny magnetic vortices and antivortices that form in a thin plate of the helical magnet Co8Zn9Mn3. The ability to manipulate nanometer-scale spin textures such as merons and skyrmions is a key to the development of spintronics -- next-generation electronic devices that are very low in power consumption. (2018-12-05)

NUS engineers invent groundbreaking spin-based memory device
A team of international researchers led by engineers from the National University of Singapore (NUS) have invented a new magnetic device which is able to manipulate digital information 20 times more efficiently and with 10 times more stability than commercial spintronic digital memories. The novel spintronic memory device employs ferrimagnets and was developed in collaboration with researchers from Toyota Technological Institute, Nagoya, and Korea University, Seoul. (2018-12-05)

Microscopic 'sunflowers' for better solar panels
Scientists from Harvard's Wyss Institute have harnessed magnetic fields to control the molecular structure of liquid crystal elastomers and create microscopic three-dimensional polymer shapes that can be programmed to move in any direction in three-dimensional space in response to multiple types of stimuli, including light and heat. The applications of this technology include message encryption, responsive solar panels, and smart buildings. (2018-12-04)

Macroscopic phenomena governed by microscopic physics
Researchers at Osaka University observe a magnetic reconnection driven by electron dynamics in laser-produced plasmas. Magnetic reconnections are often observed in the magnetic flux on the Sun and the Earth's magnetosphere. It has been highly challenging to reveal the electron scale, microscopic information in the vast universe. Applying a weak magnetic field, where only electrons are directly coupled with the magnetic field, we observed a plasmoid and cusp-like features typical to magnetic reconnections. (2018-12-03)

New quantum materials could take computing devices beyond the semiconductor era
Scientists in industry and academia are looking for new materials to succeed highly successful semiconductor transistors, now represented by CMOS. Intel and UC Berkeley scientists have hit on a very promising post-transistor technology: multiferroics, which use magnetic spin states instead of electron charge to store binary data. They have shown that these MESO (magneto-electric spin-orbit) devices can greatly improve energy efficiency and pack more logic devices onto a chip. (2018-12-03)

Crystal clear: Understanding magnetism changes caused by crystal lattice expansion
An international team including researchers from Osaka University demonstrated helimagnetic behavior in a cubic perovskite material by expanding the lattice through barium doping. The experimental findings were well supported by calculations from first principles, showing that the materials were highly sensitive to the lattice constant. It is hoped that the findings will form the foundation for new applications in sensing. (2018-12-03)

More sensitive MRI diagnostics thanks to innovative 'elastic' contrast media
Researchers from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) have found a new method for obtaining high-quality images in magnetic resonance imaging (MRI), that requires less contrast medium compared to current methods. (2018-11-30)

High-contrast imaging for cancer therapy with protons
Medical physicist Dr. Aswin Hoffmann and his team from the Institute of Radiooncology -- OncoRay at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) are the first researchers worldwide to combine magnetic resonance imaging with a proton beam, thus demonstrating that in principle, this commonly used imaging method can indeed work with particle beam cancer treatments. This opens up new opportunities for targeted, healthy tissue-sparing cancer therapy. The researchers published their results in the journal Physics in Medicine and Biology. (2018-11-29)

A new way to create Saturn's radiation belts
A team of international scientists from BAS, University of Iowa and GFZ German Research Centre for Geosciences has discovered a new method to explain how radiation belts are formed around the planet Saturn. (2018-11-29)

Artificial magnetic field produces exotic behavior in graphene sheets
Theoretical physics discovery paves the way for future technological applications. Study led by young Brazilian researcher featured on cover of Physical Review Letters. (2018-11-29)

Special topic: Superconductivity and magnetism in transition-metal compounds
SCIENCE CHINA Physics Mechanics Astronomy recently publishes a topical issue, in which eight articles are collected to touch some of the frontier studies of this field. (2018-11-28)

Innate fingerprint could detect tampered steel parts
Researchers using magnetic signals have found unique 'fingerprints' on steel, which could help to verify weapons treaties and reduce the use of counterfeit bolts in the construction industry. (2018-11-28)

Advanced imaging technology measures magnetite levels in the living brain
Investigators at the Martinos Center for Biomedical Imaging at Massachusetts General Hospital have used magnetoencephalography -- a technology that measures brain activity by detecting the weak magnetic fields produced by the brain's normal electrical currents -- to measure levels of the iron-based mineral called magnetite in the human brain. (2018-11-27)

Environment turns molecule into a switch
For the first time, physicists from the University of Würzburg have successfully positioned an organic molecule on a substrate realizing two stable configurations. This may have application potential in molecular spintronics. (2018-11-26)

Successful second round of experiments with Wendelstein 7-X
The experiments conducted until November at the Wendelstein 7-X fusion device at the Max Planck Institute for Plasma Physics (IPP) in Greifswald, Germany, have achieved higher values for the density and the energy content of the plasma and long discharge times of up to 100 seconds -- record results for devices of the stellarator type. Wendelstein 7-X, the world's largest stellarator, is to investigate the suitability of this configuration for use in a power plant. (2018-11-26)

Ultracold quantum mix
The experimental investigation of ultracold quantum matter makes it possible to study quantum mechanical phenomena that are otherwise hardly accessible. A team led by the Innsbruck physicist Francesca Ferlaino has now succeeded for the first time in mixing quantum gases of the strongly magnetic elements Erbium and Dysprosium and creating a dipolar quantum mixture. (2018-11-23)

Researchers defy 19th Century law of Physics in 21st century boost for energy efficiency
Research led by a University of Sussex scientist has turned a 156-year-old law of physics on its head. (2018-11-21)

Scientists developed enzymes with remote control
Scientists developed a method to enhance the activity of enzymes by using radio frequency radiation. The method requires making a special complex consisting of enzymes and magnetic nanoparticles. The particles can adsorb radio emission and convert it to heat, resulting in enzymatic processes acceleration by more than four times. Such method can be used to create radio-controlled biochemical systems and adjust metabolism in living organisms. The results are published in ACS Biomaterials Science & Engineering. (2018-11-21)

FEFU physicists have developed concept of new fast non-volatile memory
Using the method of micromagnetic simulation, scientists have found the magnetic parameters and operating modes for the experimental implementation of the fast racetrack memory module running on the spin current. The information carrier in the new type of memory will be the skyrmionium that allows storing more data and read them faster. An article about that is published in ''Scientific Reports'' journal. (2018-11-20)

Neuroimaging study reveals 'hot spot' for cue-reactivity in substance-dependent population
Medical University of South Carolina neuroscientists have identified a region of brain that may be a new clinical target to treat addiction. In a Translational Psychiatry article, they report locating a 'hot spot' in brain activity associated with substance use disorder that could potentially be targeted by brain stimulation therapies such as transcranial magnetic stimulation (TMS). These findings have led to a clinical trial of TMS in patients with cocaine and alcohol use disorder. (2018-11-20)

'Magnetic topological insulator' makes its own magnetic field
A team of U.S. and Korean physicists has found the first evidence of a two-dimensional material that can become a magnetic topological insulator even when it is not placed in a magnetic field. (2018-11-19)

SFU scientists described the course of reactions in two-layer thin metal films
A team of researchers from Siberian Federal University (SFU) obtained thin copper/gold and iron/palladium films and studied the reactions that take place in them upon heating. Knowing these processes, scientists will be able to improve the properties of materials currently used in microelectronics. The article of the scientists was published in the Journal of Solid State Chemistry. (2018-11-16)

Which physical mechanism is responsible for magnetic properties of cuprates upon doping?
The international team of researchers has identified and proved that adding impurities with a lower concentration of electrons stabilizes the antiferromagnetic state of cuprates, high-temperature superconducting compounds based on copper. The research team, led by a senior fellow at the Department of Applied Theoretical Physics and Applied Mathematics, Ural Federal University, Evgeny Stepanov, published the results of a study in one of the world's leading multidisciplinary science journals ''Nature''. (2018-11-15)

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