Pseudogaps and the spin-bag approach to high-Tc superconductivity

Phys. Rev. B 41, 6399 – Published 1 April 1990
A. Kampf and J. R. Schrieffer


It is shown that antiferromagnetic spin fluctuations in a two-dimensional metal, such as heavily doped cuprate superconductors, lead to a pseudogap in the electronic spectrum. The spectral function evolves from one peak in the Fermi-liquid regime to two peaks, one for particles and one for holes. The self-energy of spin bags and their pairing interaction are calculated. These results are consistent with the corresponding results in the weakly doped ordered antiferromagnet.


  • Received 2 October 1989
  • Published in the issue dated 1 April 1990

© 1990 The American Physical Society

Authors & Affiliations

A. Kampf and J. R. Schrieffer

  • Advanced Studies Program in High Temperature Superconductivity Theory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

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