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Scientists Develop New Multilayered Superconductive Material

A group of US scientists has developed a multilayered superconducting material they say can be tailored to an application’s specific needs. The group, headed by University of Wisconsin-Madison professor Chang-Beom Eom, used an iron and nitrogen-based material called pnictide, which has a higher effective operating temperature than conventional superconducting materials such as niobium, lead, or mercury. Typically, superconductors work only in very cold conditions. This new material has 24 alternating layers of metal and oxide—pnictide and strontium titanate —placed with atomic precision to form an engineered superlattice, which could work in electronic devices, as well as in transportation, power transmission, generation and storage because they are able to transport large electrical current and produce great magnetic fields. Florida State University and University of Michigan researchers contributed to the work, which appears in the online edition of the journal Nature Materials. (EurekAlert)(University of Wisconsin-Madison)(Nature Materials)

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