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Large-n limit of the Heisenberg-Hubbard model: Implications for high-Tc superconductors

Phys. Rev. B 37, 3774(R) – Published 1 March 1988
Ian Affleck and J. Brad Marston

Abstract

The Heisenberg-Hubbard model is solved in the large-n limit to gain insight into its relevance to the coppper-oxide materials. A gapless disordered ground state is found for the Heisenberg model. Electronically induced orthorhombic-tetragonal symmetry breaking is observed as a function of doping, with the greatest tendency towards superconductivity occurring in the orthorhombic phase.

DOI: http://dx.doi.org/10.1103/PhysRevB.37.3774

  • Received 13 October 1987
  • Published in the issue dated 1 March 1988

© 1988 The American Physical Society

Authors & Affiliations

Ian Affleck

  • Physics Department, University of British Columbia, Vancouver, British Columbia V6T2A6, Canada

J. Brad Marston

  • Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544

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