Abstract
It is shown that an effective attractive interaction between nearest-neighbor antiparallel spins a-rises in the Hubbard and Anderson lattice models in the limit of large on-site electron-electron repulsion. Results of Monte Carlo simulations of the Hubbard model show enhancement of anisotropic single-pairing correlations and suppression of triplet-pairing correlations. It is proposed that this interaction leads to an anisotropic singlet superconducting state in the heavy-fermion superconductors.
Keywords
PairingPhysicsHubbard modelCondensed matter physicsSpinsFermionSuperconductivityAnisotropySinglet stateElectronLattice (music)Hamiltonian (control theory)Electron pairQuantum mechanics
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Publication Info
- Year
- 1985
- Type
- article
- Volume
- 54
- Issue
- 12
- Pages
- 1317-1320
- Citations
- 571
- Access
- Closed
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Cite This
J. E. Hirsch
(1985).
Attractive Interaction and Pairing in Fermion Systems with Strong On-Site Repulsion.
Physical Review Letters
, 54
(12)
, 1317-1320.
https://doi.org/10.1103/physrevlett.54.1317
Identifiers
- DOI
- 10.1103/physrevlett.54.1317