Research by Young-June Kim, a physicist at the U.S. Department of Energys Brookhaven National Laboratory, may help determine how a class of materials already used in electronic circuits could be used in optical, or light-based, circuits, which could replace standard electrical circuits in telecommunications, computer networking, and other areas of technology.
Kims research is focused on "quasi one-dimensional" cuprates, materials that contain copper and oxygen where the atoms are tightly linked together in straight chains with weak lateral bonds -- like a ladder with steel rails and paper rungs. Because the materials properties are mainly determined by the one-dimensional "rails," this structure allows scientists to simplify their analysis by ignoring the weak "rungs."
"One-dimensional systems are special because we already know a lot about their theoretical behavior," said Kim. "Therefore, these theoretical predictions for one dimensional systems can be tested by studying quasi one-dimensional materials."
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At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
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Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
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The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
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