2006/01/23 by Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke +5
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Atomic physics #Chemistry #Condensed matter physics #Crystallography #Electronic band structure #Energy (signal processing) #Magnetic and transport properties of perovskites and related materials #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quasiparticle #Spectral line #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.75.035122
published as Phys. Rev. B 75, 035122 (2007) · 14 pages, 11 figures, 1 table
arxiv created 2006/01/23 · openalex publication_date 2007/01/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We identify a satellite structure at \ensuremath-3\phantom\rule0.3em0exeV in the photoemission spectra of layered perovskite Sr2RuO4 as a lower Hubbard band. To this end we use state-of-the-art local-density approximation plus dynamical mean-field theory (LDA+DMFT) in the basis of Wannier functions to compute spectral functions and the quasiparticle dispersion of Sr2RuO4, and then compare the results with newly measured angle-integrated and angle-resolved spectra with 700\text\ensuremath-eV photon energy. Our theoretical spectra are in overall qualitative agreement with various spectroscopic experiments. We also calculate the k dependence of the quasiparticle bands and compare the results with high-energy bulk sensitive angle-resolved photoemission data.