Generalized Flux Phases in the t - J Model Via a Large- N Slave-Boson Mean-Field Theory
J. P. Rodriguez, Benoît Douçot
Via a large-N slave-boson formulation of the t-J model on the square lattice, we study the stability of generalized flux phases as a function of electronic filling fraction in the mean-field approximation. At zero temperature we find that there exists a critical hopping parameter, below which a phase with flux quanta per plaquette given by the filling fraction is stable, and above which a fluxless uniform phase is stable.
Europhysics Letters (EPL)•Mar 1, 1990•33 citations