The Origin and Non-quasiparticle Nature of Fermi Arcs in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$

Abstract

A Fermi arc is a disconnected segment of a Fermi surface observed in the pseudogap phase of cuprate superconductors. This simple description belies the fundamental inconsistency in the physics of Fermi arcs, specifically that such segments violate the topological integrity of the band. Efforts to resolve this contradiction of experiment and theory have focused on connecting the ends of the Fermi arc back on itself to form a pocket, with limited and controversial success. Here we show the Fermi arc, while composed of real spectral weight, lacks the quasiparticles to be a true Fermi surface. To reach this conclusion we developed a new photoemission-based technique that directly probes the interplay of pair-forming and pair-breaking processes with unprecedented precision. We find the spectral weight composing the Fermi arc is shifted from the gap edge to the Fermi energy by pair-breaking processes. While real, this weight does not form a true Fermi surface, because the quasiparticles, though significantly broadened, remain at the gap edge. This non-quasiparticle weight may account for much of the unexplained behavior of the pseudogap phase of the cuprates.

References in corpus (5)

• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Electronic Origin of the Inhomogeneous Pairing Interaction in the High-Tc Superconductor Bi2Sr2CaCu2O8+d
• Laser ARPES, the sudden approximation, and quasiparticle-like peaks in Bi2Sr2CaCu2O8+delta
• Modeling the Fermi arc in underdoped cuprates
• Structural origin of apparent Fermi surface pockets in angle-resolved photoemission of Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$

Cited by in corpus (37)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
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• Square Lattice Iridates
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• Charge ordering in superconducting copper oxides
• Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
• Evolution from a nodeless gap to d(x2-y2) form in underdoped La(2-x)SrxCuO4
• Pre-pairing and the "Filling" Gap in the Cuprates From the Tomographic Density of States
• The special role of the first Matsubara frequency for superconductivity near a quantum-critical point -- the non-linear gap equation below $T_c$ and spectral properties in real frequencies
• Thermodynamic properties of the Dynes superconductors
• Establishing non-thermal regimes in pump-probe electron-relaxation dynamics
• Monte Carlo study of the pseudogap and superconductivity emerging from quantum magnetic fluctuations
• Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain
• Effects, Determination, and Correction of Count Rate Nonlinearity in Multi-Channel Analog Electron Detectors
• Superconductivity above a quantum critical point in a metal -- gap closing vs gap filling, Fermi arcs, and pseudogap behavior
• Evolution of remnant Fermi surface state in lightly-doped correlated spin-orbit insulator Sr${}_{2-x}$La${}_x$IrO${}_4$
• Fermi Arcs From Dynamical Variational Monte Carlo
• Absence of a BCS-BEC crossover in the cuprate superconductors
• Ubiquitous Charge Order Correlations in High-Temperature Superconducting Cuprates
• Particle-hole Asymmetry in the Cuprate Pseudogap Measured with Time-Resolved Spectroscopy
• Shubnikov-de Haas quantum oscilations reveal a reconstructed Fermi surface near optimal doping in a thin film of the cuprate superconductor Pr${}_{1.86}$Ce${}_{0.14}$CuO${}_{4\pm \delta }$
• Fermi and Luttinger arcs: two concepts, realized on one surface
• Pseudogap-induced coexistence of Fermi arcs and Fermi pockets in cuprate superconductors
• Consistent two-lifetime model for spectral functions of superconductors
• Incoherent superconductivity well above $T_c$ in high-$T_c$ cuprates - harmonizing the spectroscopic and thermodynamic data
• Revised phase diagram of the high-$T_c$ cuprate superconductor Pb-doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ revealed by anisotropic transport measurements
• Emergence of Superconductivity from Fully Incoherent Normal State in an Iron-Based Superconductor (Ba${}_{0.6}$K${}_{0.4}$)Fe${}_2$As${}_2$
• Superconducting fluctuations and charge-4$e$ plaquette state at strong coupling
• Simultaneous drop in mean free path and carrier density at the pseudogap onset in high-$T_c$ cuprates
• Observation of the Yamaji effect in a cuprate superconductor
• Hallmarks of the Mott-Metal Crossover in the Hole Doped J=1/2 Mott insulator Sr2IrO4
• Ubiquitous suppression of the nodal coherent spectral weight in Bi-based cuprates
• Empirical case for two pseudogaps in cuprate superconductors
• Theory of dispersive optical phonons in resonant inelastic x-ray scattering experiments
• A first-principles-based study of the thermodynamics of competing low-energy states in correlated materials: Example of cuprates