Band structure trend in cuprates and correlation with T$c\ max$

ORAL

Abstract

Parameters in model Hamiltonians are derived from LDA band structures for cuprate high T$_c$ superconductors. The materials and structural dependences of these are discussed. The most essential material dependent parameter is the range of the intralayer hopping. Furthermore, the range of this hopping correlates with T$_c$, i.e. materials with larger hopping ranges have higher maximum T$_c$'s.

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Authors

  • Ove Jepsen

    • Max Planck Institute for Solid State Research

  • Eva Pavarini

  • Wenhui Xie

  • Ole Krogh Andersen

    • Max-Planck-Institute FKF, Germany

  • Indra Dasgupta

    • IIT Bombay, India

  • Tanusri Saha-Dasgupta

    • S. N. BoseCenter, Calcutta, India