Striped superconductors in the extended Hubbard model

Abstract

We present a minimal model of a doped Mott insulator that simultaneously supports antiferromagnetic stripes and d-wave superconductivity. We explore the implications for the global phase diagram of the superconducting cuprates. At the unrestricted mean-field level, the various phases of the cuprates, including weak and strong pseudogap phases, and two different types of superconductivity in the underdoped and the overdoped regimes, find a natural interpretation. We argue that on the underdoped side, the superconductor is intrinsically inhomogeneous -- striped coexistence of of superconductivity and magnetism -- and global phase coherence is achieved through Josephson-like coupling of the superconducting stripes. On the overdoped side, the state is overall homogeneous and the superconductivity is of the classical BCS type.

5 pages, 3 eps figures. Effect of t' on stripe filling + new references are added

References in corpus (3)

• Pairing Correlations on t-U-J Ladders
• Competing Quantum Orderings in Cuprate Superconductors: A Minimal Model
• Inhomogeneity-Induced Superconductivity?

Cited by in corpus (12)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Mechanism of High Temperature Superconductivity in a striped Hubbard Model
• The Full Mottness
• Fidelity Study of Superconductivity in Extended Hubbard Models
• Evidence for Fermi surface reconstruction in the static stripe phase of La${}_{1.8-x}$Eu${}_{0.2}$Sr${}_x$CuO${}_4$, $x=1/8$
• U-J Synergy Effect for the High Tc Superconductors
• Superconducting Gap Modulation in Weak Stripe States
• Spectral and optical properties in the antiphase stripe phase of the cuprate superconductors
• An exact solution to the Extended Hubbard Model in 2D for finite size system
• The temperature dependence of the local tunnelling conductance in cuprate superconductors with competing AF order
• Off-site interaction effect in the Extended Hubbard Model with SCRPA method
• Structural compliance, misfit strain and stripe nanostructures in cuprate superconductors