2008/03/03 by E. Schachinger, J. P. Carbotte, J. P. Ćarbotte · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Condensed Matter Physics #High-pressure geophysics and materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.77.094524
published as Phys. Rev. B 77, 094524 (2008) · 9 pages, 7 figures submitted to Physical Review B
arxiv created 2008/03/03 · openalex publication_date 2008/03/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using a maximum entropy technique within a finite band Eliashberg formalism, we extract from recent high accuracy nodal direction angular-resolved photoemission spectroscopy data in optimally doped Bi2Sr2CaCu2O_8+\ensuremathδ (Bi2212) a quasiparticle electron-boson spectral density. Both normal and superconducting states with d-wave gap symmetry are treated. Finite and infinite band results are considered and contrasted. We compare with results obtained for the related transport spectral density, which follows from a similar inversion of optical data. We discuss the implication of our results for quasiparticle renormalizations in the antinodal direction.