Physicists from the Institute for Solid State Physics at the University of Tokyo have generated the strongest controllable magnetic field ever produced. The field was sustained for longer than any previous field of a similar strength. This research could lead to powerful investigative tools for material scientists and may have applications in fusion power generation.
When light pulses from an extremely powerful laser system are fired onto material samples, the electric field of the light rips the electrons off the atomic nuclei. A plasma is created. The electrons couple with the laser light in the process. When flying out of the target, they pull the atomic cores behind them. In order to experimentally investigate this complex acceleration process, researchers from the German Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have developed a novel type of diagnostics for innovative laser-based particle accelerators.
Scientists at the University of Tokyo have recorded the largest magnetic field ever generated indoors -- a whopping 1,200 tesla, as measured in the standard units of magnetic field strength. The high magnetic field also has implications for nuclear fusion reactors, a tantalizing if unrealized potential future source of abundant clean energy. The experiments that set the new world record are described in this week's Review of Scientific Instruments.
A team of researchers, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) presents alternative approaches for versatile future applications of plastic magnets.
The University of Tokyo Institute of Industrial Science researchers have created a model to explore the transition behavior of crystal lattices. Their system, based on spheroid particles with a permanent dipole, showed that the combination of anisotropic steric and dipole effects causes frustration that induces the coupling between polarization and strain, resulting in the self-organization. These findings are expected to contribute to the rational design of materials for applications including electro-mechanical actuators and electro-caloric refrigerators.
An experiment at the University of Nebraska-Lincoln demonstrated how the application of intense light boosts electrons to their highest attainable speeds.
Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets.
In the future, today's electronic storage technology may be superseded by devices based on tiny magnetic structures. Scientists at Johannes Gutenberg University Mainz (JGU) in Germany have refined an electron microscope-based technique that makes it possible not only to capture static images of these components but also to film the high-speed switching processes. They have also employed a specialized signal processing technology that suppresses image noise.
UC Berkeley engineers have created a device that dramatically reduces the energy needed to power magnetic field detectors, which could revolutionize how we measure the magnetic fields that flow through our electronics, our planet, and even our bodies. The researchers found a new way to excite tiny diamonds with microwaves using 1,000 times less power, making it feasible to create magnetic-sensing devices that can fit into electronics like cell phones.
UCLA Samueli engineers have developed a new tool to model how magnetic materials, which are used in smartphones and other communications devices, interact with incoming radio signals that carry data. It accurately predicts these interactions down to the nanometer scales required to build state-of-the-art communications technologies.