Topological Gauge Structure and Phase Diagram for Weakly Doped Antiferromagnets

Abstract

We show that the topological gauge structure in the phase string theory of the {\rm t-J} model gives rise to a global phase diagram of antiferromagnetic (AF) and superconducting (SC) 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 $x_c\simeq 0.043$. The complex experimental phase diagram at low doping is well described within such a framework.

4 pages, 2 figures, modified version, to appear in Phys. Rev. Lett

References in corpus (1)

• Holes as Dipoles in a Doped Antiferromagnet and Stripe Instabilities

Cited by in corpus (7)

• Mutual-Chern-Simons effective theory of doped antiferromagnets
• Phase String Theory for Doped Antiferromagnets
• Spin dynamics in a doped-Mott-insulator superconductor
• Bosonic resonating valence bond wave function for doped Mott insulators
• Self-localization of holes in a lightly doped Mott insulator
• Charge dynamics in the phase string model for high-Tc superconductors
• Emergence of Topological Fermi Liquid from a Strongly Correlated Bosonic System in Optical Superlattices