Temperature and Doping Dependence of the High-Energy Kink in Cuprates

2007/06/08 by M. M. Zemljic, M. M. Zemljič, P. Prelovšek +3 · 48 citations
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Condensed Matter Physics #Angle-resolved photoemission spectroscopy #Atomic physics #Binding energy #Condensed matter physics #Cuprate #Doping #Electron #Electronic structure #High-pressure geophysics and materials #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.100.036402

published in Physical Review Letters 100(3), 036402 (American Physical Society) · 4 pages, 4 figures

arxiv created 2007/06/08 · openalex publication_date 2008/01/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

It is shown that spectral functions within the extended t-J model, evaluated using the finite-temperature diagonalization of small clusters, exhibit the high-energy kink in single-particle dispersion consistent with recent angle-resolved photoemission results on hole-doped cuprates. The kink and waterfall-like features persist up to large doping and to temperatures beyond J; hence, the origin can be generally attributed to strong correlations and incoherent hole propagation at large binding energies. In contrast, our analysis predicts that electron-doped cuprates do not exhibit these phenomena in photoemission.

Citations

• Angle-resolved photoemission studies of the cuprate superconductors
• High-Energy Kink in the Single-Particle Spectra of the Two-Dimensional Hubbard Model
• Asymmetry of the electronic states in hole- and electron-doped cuprates: Exact diagonalization study of the t-t′-t″-J model
• Momentum and excitation energy dependence of the "waterfalls" in cuprates
• Single-Particle Excitations in Magnetic Insulators
• Paramagnon-induced dispersion anomalies in the cuprates
• Possible observation of “string excitations” of a hole in a quantum antiferromagnet
• High-Energy Scale Revival and Giant Kink in the Dispersion of a Cuprate Superconductor
• Spectral functions and the pseudogap in thet−Jmodel
• Universal High Energy Anomaly in the Angle-Resolved Photoemission Spectra of High Temperature Superconductors: Possible Evidence of Spinon and Holon Branches
• Electronic states in the antiferromagnetic phase of electron-doped high-Tccuprates

Cited by

• Optical weights and waterfalls in doped charge-transfer insulators: A local density approximation and dynamical mean-field theory study ofLa2−xSrxCuO4
• Spin-polaron band structure and hole pockets in underdoped cuprates