Changing an insulating state with Wigner-like correlations into a superconductor with applications to doped fullerides

Authors

  • Richard H. Squire,

    Corresponding author
    1. Department of Chemistry, West Virginia University, Institute of Technology, Montgomery, West Virginia 25136, USA
    2. Department of Physics, University of Antwerp, Antwerp, Belgium
    • Department of Chemistry, West Virginia University, Institute of Technology, Montgomery, West Virginia 25136, USA
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  • Norman H. March

    1. Oxford University, Oxford, England
    2. Department of Physics, University of Antwerp, Antwerp, Belgium
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Abstract

We propose a microscopic mechanism for superconductivity in an alkali-metal doped fulleride. Support is given for the notion that a fulleride doped with two electrons exhibits Wigner-like correlations. Doping a third electron into this system leads to a transition to superconductivity. The present work has expanded interactions to include not only Wigner-like correlations between electrons, but also phonons and plasmons. The strength and influence of the numerous interactions are discussed. In the latter context, a “Marel plot” is briefly considered along with electron energy loss measurements. Lastly, we propose that a “soft” electron-pair quasi-particle is involved in pairing. © 2006 Wiley Periodicals, Inc. Int J Quantum Chem, 2006

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