Self-energy and fluctuation spectra in cuprates: Comparing optical and photoemission results

2012/07/12 by R. S. Markiewicz, Tanmoy Das, A. Bansil +1 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced Condensed Matter Physics #Angle-resolved photoemission spectroscopy #Atomic physics #Condensed matter physics #Cuprate #Electron #Energy (signal processing) #Materials science #Optical spectra #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Self-energy #Spectral line #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.86.024511

published as Phys. Rev. B 86, 024511 (2012) · 10 pages, 6 figures

openalex publication_date 2012/07/12 · arxiv created 2012/07/25 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We compare efforts to extract self-energies and fluctuation spectra of the cuprates using optical and photoemission techniques. The fluctuations have contributions from both the coherent and incoherent parts of the band, which are spread over the full bare bandwidth of >\phantom\rule-0.16em0ex2 eV. Many experimental studies concentrate on the coherent part of the band and hence miss higher-energy fluctuations. Our study establishes the universal presence of high-energy bosonic fluctuations across various spectroscopies as a key ingredient in the high-temperature superconducting cuprates.

Citations

• Interplay of electron–lattice interactions and superconductivity in Bi2Sr2CaCu2O8+δ
• Properties of boson-exchange superconductors
• Paramagnon-induced dispersion anomalies in the cuprates
• Coupling to spin fluctuations from conductivity scattering rates
• High-transition-temperature superconductivity in the absence of the magnetic-resonance mode
• Emergence of non-Fermi-liquid behavior due to Fermi surface reconstruction in the underdoped cuprate superconductors
• Magnetic energy change available to superconducting condensation in optimally doped YBa2Cu3O6.95
• High-Energy Scale Revival and Giant Kink in the Dispersion of a Cuprate Superconductor
• Evidence of phonon-mediated coupling between charge transfer and ligand field excitons inSr2CuO2Cl2
• Universal High Energy Anomaly in the Angle-Resolved Photoemission Spectra of High Temperature Superconductors: Possible Evidence of Spinon and Holon Branches

Cited by

• Intermediate coupling model of the cuprates