Theory of high energy features in angle-resolved photo-emission spectra of hole-doped cuprates

Abstract

The recent angle-resolved photoemission measurements performed up to binding energies of the order of 1eV reveals a very robust feature: the nodal quasi-particle dispersion breaks up around 0.3-0.4eV and reappears around 0.6-0.8eV. The intensity map in the energy-momentum space shows a waterfall like feature between these two energy scales. We argue and numerically demonstrate that these experimental features follow naturally from the strong correlation effects built in the familiar t-J model, and reflect the connection between the fermi level and the lower Hubbard band. The results were obtained by a mean field theory that effectively projects electrons by quantum interference between two bands of fermions instead of binding slave particles.

5 pages 2 figs

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• Momentum and excitation energy dependence of the "waterfalls" in cuprates
• High energy kink in the single particle spectra of the two-dimensional Hubbard model
• High Energy Dispersions in Bi2Sr2CaCu2O8 High Temperature Superconductor from Laser-Based Angle-Resolved Photoemission
• Effect of strong correlations on the high energy anomaly in hole- and electron-doped high-Tc superconductors
• Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature \LSCO\ superconductors
• Renormalization of Bulk Magnetic Electron States at High Binding Energies
• Temperature and doping dependence of high-energy kink in cuprates
• Paramagnon-induced dispersion anomalies in the cuprates
• Excitation energy map of the high-energy dispersion anomalies in cuprates
• Extracting the spectral function of the cuprates by a full two-dimensional analysis: Angle-resolved photoemission spectra of Bi2Sr2CuO6
• Two-mode variational Monte Carlo study of Quasiparticle excitations in cuprates
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• Spectral properties near the Mott transition in the two-dimensional t-J model
• The high-energy anomaly in ARPES spectra of the cuprates-many body or matrix element effect?
• Evidence for Multiple Underlying Fermi Surface and Isotropic Energy Gap in the Cuprate Parent Compound Ca${}_2$CuO${}_2$Cl${}_2$
• Doped carrier formulation of the t-J model: the projection constraint and the effective Kondo-Heisenberg lattice representation
• Appearance of Universal Metallic Dispersion in a Doped Mott Insulator
• Local correlations necessitate waterfalls as a connection between quasiparticle band and developing Hubbard bands
• One-particle spectral properties of the t-J-$V$ model on the triangular lattice near charge order
• Energy-dependent scaling of incoherent spectral weight and the origin of the waterfalls in high-Tc cuprates