Abstract
We show that a topological gauge structure in an effective description of the model gives rise to a global phase diagram of antiferromagnetic and superconducting phases in a weakly doped regime. Dual confinement and deconfinement of holons and spinons play essential roles here, with a quantum critical point at a doping concentration . The complex experimental phase diagram at low doping is well described within such a framework.
- Received 19 May 2002
DOI:https://doi.org/10.1103/PhysRevLett.90.157003
©2003 American Physical Society