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
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10.04.2004
Published in:
- Physica C: Superconductivity. - 2004, vol. 408-410, p. 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 et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 4249
- DOI 10.1016/j.physc.2004.02.144
- Persistent URL
- https://folia.unifr.ch/unifr/documents/299790
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