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  • mask_ipx_spx mask_ipx_spx Jun 13, 2013 7:17 PM Flag

    New theory on ceramic copper oxide superconducting

    On the ScienceDaily site, 'Long-Awaited Explanation' for Mysterious Effects in High-Temperature Superconductors

    "It is not to be excluded that the new pseudogap theory also provides the long-awaited explanation for why, in contrast to conventional metallic superconductors, certain ceramic copper oxide bonds lose their electrical resistance at such unusually high temperatures," say Prof. Dr. Konstantin Efetov and Dr. Hendrik Meier of the Chair of Theoretical Solid State Physics at the Ruhr-Universität Bochum. They obtained the findings in close cooperation with Dr. Catherine Pépin from the Institute for Theoretical Physics in Saclay near Paris. The team reports in the journal Nature Physics."

    "To make the material superconducting, researchers introduce "positive holes," i.e. electron holes into the crystal lattice. Through these, the electrons can "flow" in Cooper pairs. This is known #$%$ doping. The pseudogap state only sets in when the hole doping of the cuprate is neither too low nor too high."

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