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Superconductivity in Pseudodegenerate Overlapping Bands Systems: Copper Oxides and C60Kx

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Advances in Superconductivity IV

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Abstract

The clear enhancements of the superconducting pair-field susceptibilities of the dp+π model at low temperature have been obtained in one and two dimensional lattices. This model includes the second band coming from in-plane oxygen sites which submerges below or cuts the Fermi level in addition to the dp (three band Hubbard) Hamiltonian. There is a pair transfer interaction between the two bands at the oxygen sites. We have presumed that on site Coulomb repulsion at copper site is very large. Here, we will review our results and give some justifications of this model as a model of the high-Tc copper oxides. We will mention about an analogy of the superconducting mechanisms in the copper oxides and the doped C60.

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References

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Author information

Authors and Affiliations

  1. Electrotechnical Laboratory, Tsukuba, Ibaraki, 305, Japan

    Yoshihiro Asai

Authors
  1. Yoshihiro Asai
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Editor information

Editors and Affiliations

  1. School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464, Japan

    Hisao Hayakawa

  2. Superconductivity Research Laboratory, ISTEC, Koto-ku, Tokyo 135, Japan

    Naoki Koshizuka (Deputy Director) (Deputy Director)

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© 1992 Springer-Verlag Tokyo

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Asai, Y. (1992). Superconductivity in Pseudodegenerate Overlapping Bands Systems: Copper Oxides and C60Kx . In: Hayakawa, H., Koshizuka, N. (eds) Advances in Superconductivity IV. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68195-3_10

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  • DOI: https://doi.org/10.1007/978-4-431-68195-3_10

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68197-7

  • Online ISBN: 978-4-431-68195-3

  • eBook Packages: Springer Book Archive

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