Low-energy renormalization of the electron dispersion of high-T${}_c$ superconductors

Abstract

High-resolution ARPES studies in cuprates have detected low-energy changes in the dispersion and absorption of quasi-particles at low temperatures, in particular, in the superconducting state. Based on a new 1/N expansion of the t-J-Holstein model, which includes collective antiferromagnetic fluctuations already in leading order, we argue that the observed low-energy structures are mainly caused by phonons and not by spin fluctuations, at least, in the optimal and overdoped regime.

6 pages, 3 figures

References in corpus (9)

• Renormalization of spectral lineshape and dispersion below Tc in Bi2Sr2CaCu2O8+d
• Evidence for an energy scale for quasiparticle dispersion in Bi_2Sr_2CaCu_2O_8
• The neutron resonance: modeling photoemission and tunneling data in the superconducting state of Bi_2Sr_2CaCu_2O_{8+d}
• Neutron scattering and superconducting order parameter in YBa2Cu3O7
• Effect of Nonmagnetic Impurities on the Magnetic Resonance Peak in YBa2Cu3O7
• Out-of-plane instability and electron-phonon contribution to s- and d-wave pairing in high-temperature superconductors; LDA linear-response calculation for doped CaCuO2 and a generic tight-binding model
• Effective interactions and superconductivity in the t-J model in the large-N limit
• Electronic correlations, electron-phonon interaction, and isotope effect in high-Tc cuprates
• Influence of spin fluctuations on the superconducting transition temperature and resistivity in the t-J model at large N

Cited by in corpus (18)

• Magnetic Resonant Mode in the Single-Layer High Temperature Superconductor Tl${}_2$Ba${}_2$Cu${}_{6+\delta }$
• Interplay between electron-phonon and Coulomb interactions in cuprates
• Effect of an Electron-phonon Interaction on the One-electron Spectral Weight of a d-wave Superconductor
• Momentum dependence of the electron-phonon coupling and self-energy effects in YBa_2Cu_3O_7 within the local density approximation
• Renormalization of the elementary excitations in hole- and electron-doped cuprates due to spin fluctuations
• Renormalization of the electron-phonon coupling in the one-band Hubbard model
• One-electron self energies and spectral functions for the t-J model in the large-N limit
• Direct observation of self energy signatures of the resonant collective mode in Bi2Sr2CaCu2O8
• Self-energy effects in electronic Raman spectra of doped cuprates due to magnetic fluctuations
• C-Axis Tunneling Spectra in High-T${}_c$ Superconductors in the Presence of a d Charge-Density Wave
• Electron self-energy from quantum charge fluctuations in the layered t-J model with long-range Coulomb interaction
• Theoretical understanding of the quasiparticle dispersion in bilayer high-$T_c$ superconductors
• Plasmarons in high-temperature cuprate superconductors
• Role of dynamical non-double-occupancy excitations on the quasiparticle damping of the $t-J$ model in the large-$N$ limit
• On the break in the single-particle energy dispersions and the `universal' nodal Fermi velocity in the high-temperature copper-oxide superconductors
• Manifestation of marginal Fermi liquid and phonon excitations in photoemision experiments of cuprate superconductors
• Pseudogap in cuprates driven by d-wave flux-phase order proximity effects: A theoretical analysis from Raman and ARPES experiments
• Antiferromagnetism and singlet formation in underdoped high-Tc cuprates: Implications for superconducting pairing