Energies of the staggered flux phase: A numerical study
- 1 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (13) , 8720-8723
- https://doi.org/10.1103/physrevb.42.8720
Abstract
Kinetic and magnetic energies of the staggered flux phase, with a fictitious flux of equal magnitude but opposite direction in adjacent square plaquettes, are calculated for the two-dimensional t-J model using the variational Monte Carlo method. They are compared to the energies of the resonating-valence-bond state, the flux phase with half a quantum per plaquette, and the projected Fermi-liquid state. For about 10% hole concentration the staggered flux phase has the lowest energy of the nonsuperconducting states, but its energy is still higher than that of the superconducting d-wave state.Keywords
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