Authors: George Rajna
Researchers have developed a new laser-based system that offers an efficient and low-cost way to detect fires in challenging environments such as industrial facilities or large construction sites.  For the first time researchers successfully used laser pulses to excite an iron-based compound into a superconducting state.  Fermilab scientists and engineers have achieved a landmark result in an ongoing effort to design and build compact, portable particle accelerators.  The interdisciplinary research team in the departments of physics, astronomy and advanced materials in the U.S. and Japan found the side gates to be highly efficient, allowing them to control carrier density along either edge of the junction across a wide range of magnetic fields.  Ultimately, Li said, the combination of a superconducting and a magnetic system allows for precise coupling and decoupling of the magnon and photon, presenting opportunities for manipulating quantum information.  Great hope rests on so-called cuprates, copper and oxygen based compounds also called high-temperature superconductors, where the scientific community is focusing its efforts.  Discovered more than 100 years ago, superconductivity continues to captivate scientists who seek to develop components for highly efficient energy transmission, ultrafast electronics or quantum bits for next-generation computation.  One of the greatest mysteries in condensed matter physics is the exact relationship between charge order and superconductivity in cuprate superconductors. 
Comments: 56 Pages.
[v1] 2019-09-26 04:47:08
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