Calendar Details
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Monday, October 22
The Search for Optimal Superconductors: "The Good, the Bad, and the Ugly"
Emilia Morosan, Rice University, Houston, TexasMaterials Science and Technology Division Seminar
11:00 AM — 12:00 PM, Chemical and Material Sciences Building (4100), Room J-302
Contact: Michael McGuire (mcguirema@ornl.gov), 865.574.5496
Abstract
Conventional wisdom teaches us that magnetism and superconductivity are incompatible. However several examples are now known, which not only contradict this long-held belief but support the idea that magnetic instabilities are necessary for high temperature superconductivity. In this talk, I will emphasize aspects of our understanding of the interplay between crystal structure, magnetism, and superconductivity as a route for designing practical superconductors. Some specific examples will include 2D versus 3D transition metal pnictides and chalcogenides, such as CaFe4As3, and the checkerboard Mott insulator Sr2F2Fe2OS2.
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