Electron Removal Self Energy and its application to Ca2CuO2Cl2

Abstract

We propose using the self energy defined for the electron removal Green's function. Starting from the electron removal Green's function, we obtained expressions for the removal self energy Sigma^ER (k,omega) that are applicable for non-quasiparticle photoemission spectral functions from a single band system. Our method does not assume momentum independence and produces the self energy in the full k-omega space. The method is applied to the angle resolved photoemission from Ca_2CuO_2Cl_2 and the result is found to be compatible with the self energy value from the peak width of sharp features. The self energy is found to be only weakly k-dependent. In addition, the Im Sigma shows a maximum at around 1 eV where the high energy kink is located.

5 pages, 3 figures

References in corpus (18)

• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors
• Renormalization of spectral lineshape and dispersion below Tc in Bi2Sr2CaCu2O8+d
• Many-body Effects in Angle-resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State
• Evidence for an energy scale for quasiparticle dispersion in Bi_2Sr_2CaCu_2O_8
• Finite temperature numerical renormalization group study of the Mott-transition
• A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors - possible evidence of spinon and holon branches
• Electronic Structure of Mott Insulators Studied by Inelastic X-ray Scattering
• Mass-renormalized electronic excitations at ($\pi$, 0) in the superconducting state of $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$
• Bare electron dispersion from photoemission experiments
• Self-consistent self-energy analysis of photoemission data
• Anomalous high energy dispersion in photoemission spectra from insulating cuprates
• High-energy scale revival and giant kink in the dispersion of a cuprate superconductor
• Effect of the magnetic resonance on the electronic spectra of high Tc superconductors
• Doping dependence of the coupling of electrons to bosonic modes in the single-layer high-temperature Bi2Sr2CuO6 superconductor
• Constituents of the "kink" in high-Tc cuprates
• Extraction of the Electron Self-Energy from Angle Resolved Photoemission Data: Application to Bi2212
• Hubbard model versus t-J model: The one-particle spectrum

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• Angle-resolved photoemission spectroscopy of electron-doped cuprate superconductors: Isotropic electron-phonon coupling
• Extracting the spectral function of the cuprates by a full two-dimensional analysis: Angle-resolved photoemission spectra of Bi2Sr2CuO6
• Differences in the high-energy kink between hole- and electron-doped high-$T_{\mathrm{c}}$ superconductors
• Superconductivity distorted by the coexisting pseudogap in the antinodal region of Bi${}_{1.5}$Pb${}_{0.55}$Sr${}_{1.6}$La${}_{0.4}$CuO${}_{6+\delta }$: A photon-energy-dependent angle-resolved photoemission study
• Self Energy and Fluctuation Spectra in Cuprates: Comparing Optical and Photoemission Results