• Role of apex oxygen and redox elements in high temperature superconductors

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    • Keywords


      Redox ions; apex oxygen

    • Abstract


      The presence of valence fluctuating redox ions such as Pb, Tl, Sb, etc can enhance the transition temperature of the new oxide superconductors. We propose the possibility of the existence of negative Hubbard parameter (U) on redox ion which results in effective negativeU on apex oxygen bridging redox ion and the CuO2 planes. This enhancesTc.

    • Author Affiliations


      R E Amritkar1 D G Kanhere1 P V Panat1 A P B Sinha1

      1. Department of Physics, University of Poona, Pune - 411007, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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