The space environment is harsh and full of extreme radiation. Scientists designing spacecraft and satellites need materials that can withstand these conditions.
University of Missouri researchers have developed a way to create complex devices with multiple materials—including plastics, metals and semiconductors—all with a single machine.
The research, which was recently published in Nature Communications, outlines a novel 3D printing and laser process to manufacture multi-material, multi-layered sensors, circuit boards and even textiles with electronic components.
It’s called the Freeform Multi-material Assembly Process, and it promises to revolutionize the fabrication of new products.
In a paper published today in Nature Communications, researchers unveiled previously unobserved phenomena in an ultra-clean sample of the correlated metal SrVO3. The study offers experimental insights that challenge the prevailing theoretical models of these unusual metals.
The international research team—from the Paul Drude Institute of Solid State Electronics (PDI), Germany; Oak Ridge National Laboratory (ORNL); Pennsylvania State University; University of Pittsburgh; the Pittsburgh Quantum Institute; and University of Minnesota—believes their findings will prompt a re-evaluation of current theories on electron correlation effects, shedding light on the origins of valuable phenomena in these systems, including magnetic properties, high-temperature superconductivity, and the unique characteristics of highly unusual transparent metals.
The perovskite oxide material SrVO3 is classified as a Fermi liquid—a state describing a system of interacting electrons in a metal at sufficiently low temperatures.
“People are always searching for chiral ground states,” McQueeney said. “The reason we use the concept of quasiparticle here is because it is a way of transmitting energy or information, like an electron is a quasiparticle, and we can send it from point A to point B, carrying some information.
A chiral quasiparticle would have other attributes to it. It would have a handedness, for example, and so you could think about novel ways to, say, transmit information from point A to point B, which didn’t involve moving a charge, but moving some chiral signal.
Discovering this new chiral excitation was especially exciting for McQueeney, You don’t expect it to be there, he said. And we still don’t understand why it’s there. As a matter of fact, we’re setting up other experiments to look for it in other materials.
Positioned between microwaves and infrared light, terahertz waves are key to pioneering advancements in imaging and diagnostic technologies. A recent discovery at Tohoku University of a material that can emit these waves more intensely promises to catalyze significant breakthroughs across a spectrum of industries.
Terahertz waves are being intensely studied by researchers around the world seeking to understand the “terahertz gap.” Terahertz waves have a specific frequency that put them somewhere between microwaves and infrared light. This range is referred to as a “gap” because much remains unknown about these waves. In fact, it was only relatively recently that researchers were able to develop the technology to generate them. Researchers at Tohoku University have brought us closer to understanding these waves and filling in this gap of knowledge.
Breakthrough in Terahertz Wave Generation.
Researchers have successfully manipulated the structural properties of magnetite using light-induced phase transitions.
This technique uncovered hidden phases of magnetite, paving the way for new approaches to material manipulation in electronics.
Breakthrough in magnetite phase transition research.
Japanese firm TDK aims to improve next-gen solid-state battery design with a new material utilizing multi-layer lamination technology.
Researchers at EPFL have discovered that by shining different wavelengths (colors) of light on a material called magnetite, they can change its state, e.g., making it more or less conducive to electricity. The discovery could lead to new ways of designing new materials for electronics such as memory storage, sensors, and other devices that rely on fast and efficient material responses.
Dr. Johan Christensen, leader of IMDEA Materials Institute’s Mechanical and Acoustic Metamaterials research group, is among the researchers behind a pioneering study exploring the topological properties of metamaterials.
