1999/05/31 by K. Tsutsui, Ken‐Ichiro Tsutsui, Takami Tohyama +3 · 4 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Condensed matter physics #Cuprate #Electron #Hubbard model #Inelastic neutron scattering #Inelastic scattering #Magnetism in coordination complexes #Momentum (technical analysis) #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum mechanics #Resonant inelastic X-ray scattering #Scattering #Spectrum (functional analysis) #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.83.3705
published as Phys. Rev. Lett. 83, 3705 (1999) · 4 pages with 4 figures, to be published in PRL
arxiv created 1999/10/05 · openalex publication_date 1999/11/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The resonant inelastic x-ray scattering spectrum in insulating cuprates is examined by using the exact diagonalization technique on small clusters in the two-dimensional Hubbard model with second and third neighbor hopping terms. When the incident photon energy is tuned near the Cu K absorption edges, we find that the features of the unoccupied upper Hubbard band can be extracted from the spectrum through an anisotropic momentum dependence. They provide an opportunity for the understanding of the different behavior of hole- and electron-doped superconductors.