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Superexchange Mediated Superconductivity in the Single Band Hubbard Model

  • S. Doniach
  • P. J. Hirschfeld
  • M. Inui
  • A. E. Ruckenstein

Abstract

We discuss the physics of BCS pairing in the strongly correlated single band Hubbard model close to half-filling. In contrast to spin-fluctuation mediated pairing of importance in 3 He and heavy Fermion systems, we argue that the superexchange mediated pairing proposed by Anderson is stabilized by short range antiferromagnetic spin ordering. A mean field calculation shows that coexistence of antiferromagnetism and superconductivity is a stable solution for a doped Mott-Hubbard system.

Keywords

Hubbard Model Coulomb Repulsion Pairing Mechanism Heavy Fermion System Resonant Valence Bond 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • S. Doniach
    • 1
  • P. J. Hirschfeld
    • 1
    • 2
  • M. Inui
    • 3
  • A. E. Ruckenstein
    • 2
  1. 1.Dept of Applied PhysicsStanford UniversityStanfordUSA
  2. 2.Dept of PhysicsUniversity of California at San DiegoLa JollaUSA
  3. 3.Dept of PhysicsStanford UniversityStanfordUSA

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