Charge order, superconductivity, and a global phase diagram of doped antiferromagnets
arXiv:cond-mat/9906104 · doi:10.1103/PhysRevLett.83.3916
Abstract
We investigate the interplay between lattice-symmetry breaking and superconducting order in a two-dimensional model of doped antiferromagnets, with long-range Coulomb interactions and Sp(2N) spin symmetry, in the large-N limit. Our results motivate the outline of a global phase diagram for the cuprate superconductors. We describe the quantum transitions between the phases, the evolution of their fermion excitation spectrum, and the experimental implications.
4 pages, 4 figs, final version as published