From underdoped to overdoped cuprates: two quantum phase transitions

Abstract

Several experimental and theoretical studies indicate the existence of a critical point separating the underdoped and overdoped regions of the high-T_c cuprates' phase diagram. There are at least two distinct proposals on the critical concentration and its physical origin. First one is associated with the pseudogap formation for p<p*, with p~0.2. Another one relies on the Hall effect measurements and suggests that the critical point and the quantum phase transition (QPT) take place at optimal doping, p_{opt}~0.16. Here we have performed a precise density of states calculation and found that there are two QPTs and the corresponding critical concentrations associated with the change of the Fermi surface topology upon doping.

References in corpus (15)

• Two Gaps Make a High Temperature Superconductor?
• Coexistence of Fermi arcs and Fermi pockets in a high Tc copper oxide superconductor
• Critical fermi surfaces and non-fermi liquid metals
• Evolution of electronic structure of doped Mott insulators - reconstruction of poles and zeros of Green's function
• Strongly Correlated Superconductivity: a plaquette Dynamical mean field theory study
• Doped high-Tc cuprate superconductors elucidated in the light of zeros and poles of electronic Green's function
• Fermi pockets and quantum oscillations of the Hall coefficient in high temperature superconductors
• Physics of cuprates with the two-band Hubbard model - The validity of the one-band Hubbard model
• A new hybrid LDA and Generalized Tight-Binding method for the electronic structure calculations of strongly correlated electron systems
• Quantum Phase Transition in the Normal State of High-Tc Cuprates at Optimum Doping
• Cuprate Fermi orbits and Fermi arcs: the effect of short-range antiferromagnetic order
• Competition between antiferromagnetism and superconductivity, electron-hole doping asymmetry and "Fermi Surface" topology in cuprates
• Doping-dependent evolution of low-energy excitations and quantum phase transitions within effective model for High-Tc copper oxides
• Thermodynamics of the Quantum Critical Point at Finite Doping in the 2D Hubbard Model: A Dynamical Cluster Approximation Study
• Fermiology of Cuprates from First Principles: From Small Pockets to the Luttinger Fermi surface

Cited by in corpus (5)

• Doping and temperature evolution of pseudogap and spin-spin correlations in the two-dimensional Hubbard model
• A gauge approach to the "pseudogap" phenomenology of the spectral weight in high Tc cuprates
• One- and two-particle correlation functions in the cluster perturbation theory for cuprates
• Effects of a k-dependent Hybridization on the Fermi Surface of an Extended $d-p$ Hubbard Model
• Competition between superconductivity and spin density wave