Making new layered superconductors using high entropy alloys

Science Daily   May 4, 2018
Use of layered materials with a molecular structure consisting of alternating superconducting layers and “blocking layers” acting as insulating spacers is used to design new superconductors that retain superconducting properties at higher temperatures. Researchers in Japan have created new superconductors made of layers of bismuth sulfide and a high entropy rare earth alloy oxyfluoride, containing five rare earth elements – lanthanum, cerium, praseodymium, neodymium, and samarium – at the same crystallographic site. The new material retains superconducting properties over a wider range of lattice parameters than materials without high-entropy-alloy states. The work promises a new strategy in the search for high-temperature superconductors… read more. Open Access TECHNICAL ARTICLE

This is a schematic image of the crystal structure of high-entropy-alloy-type REO0.5F0.5BiS2. Credit: Yoshikazu Mizuguchi

Posted in Superconductor and tagged , .

Leave a Reply