Journal article

Circulating-current states and ring-exchange interactions in cuprates

  • Normand, Bruce Physics Department, University of Fribourg, Switzerland
  • Oleś, Andrzej M. Department of Theoretical Physics, Jagellonian University, Kraków, Poland
    10.04.2004
Published in:
  • Physica C: Superconductivity. - 2004, vol. 408-410, no. 252-253
English We consider circulating charge- and spin-current states in a generalised Hubbard model for the CuO₂ planes in cuprates. We investigate the parameter regimes for these phases in microscopic calculations on small clusters. We demonstrate that a positive ring-exchange interaction enhances (suppresses) spin- (charge-)flux phases.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/299790
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