Researchers report a copper oxide, Ba2CuO4-y, which exhibits superconductivity at temperatures up to 73 K and structural features distinct from those of all cuprate superconductors known since 1986, and previously thought to be unfavorable for high-temperature superconductivity, challenging previous understanding of the superconducting mechanism in the compounds and suggesting new directions for high-temperature superconductors.
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Article #19-00908: "Superconductivity in a unique type of copper oxide," by Wenmin Li et al.
MEDIA CONTACT: Changqing Jin, Institute of Physics, Chinese Academy of Sciences, Beijing, CHINA; tel: +86-10-82649163, +86-10-13810339263; e-mail: Jin@iphy.ac.cn
Proceedings of the National Academy of Sciences