2006/05/03 by D. V. Evtushinsky, A. A. Kordyuk, S. V. Borisenko +10
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Condensed Matter Physics #High-pressure geophysics and materials #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.74.172509
published as Phys. Rev. B 74, 172509 (2006) · 4 revtex pages, 4 figures
arxiv created 2006/05/03 · openalex publication_date 2006/11/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Fitting the momentum distribution photoemission spectra to the Voigt profile appears to be a robust procedure to purify the interaction effects from the experimental resolution. In application to Bi2Sr2CaCu2O_8+\ensuremathδ high-Tc cuprates, the procedure reveals the true scattering rate at low binding energies and temperatures, and consequently, the true value of the elastic scattering. Reaching the minimal value \ensuremath∼16\phantom\rule0.3em0exmeV, the elastic scattering does not reveal a systematic dependence on doping level, but is rather sensitive to impurity concentration and can be explained by the forward scattering on out-of-plane impurities. The inelastic scattering is found to form well-defined quasiparticles with the scattering rate \ensuremath∼\ensuremathω2 and \ensuremath∼\ensuremathω3, above and below Tc, respectively.