2003/12/31 by Takuji Nomura, Jun-ichi Igarashi · 2 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Atomic physics #Charge (physics) #Condensed matter physics #Cuprate #Energy (signal processing) #Inelastic neutron scattering #Inelastic scattering #Magnetic properties of thin films #Momentum transfer #Optics #Particle physics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Resonant inelastic X-ray scattering #Scattering #Spectral line #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.71.035110
published as Phys. Rev. B 71, 035110 (2005) · 5 pages, 5 figures, to be published in Phys. Rev. B
arxiv created 2005/01/12 · openalex publication_date 2005/01/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We provide a semiquantitative explanation of a recent experiment on the resonant inelastic x-ray scattering (RIXS) in insulating cuprate La2CuO4 [Y. J. Kim et al., Phys. Rev. Lett. 89, 177003 (2002)]. We show theoretically that there are three characteristic peaks in RIXS spectra, two of which are attributed to the charge transfer excitation and are reasonably assigned to those observed experimentally. The lowest-energy peak has a relatively large dispersion (\ensuremath∼0.8\phantom\rule0.3em0exeV) and is suppressed near the zone corner (\ensuremathπ,\ensuremathπ), in agreement with the experiment. We stress that electron correlation is an essential factor for explaining the overall energy-momentum dependence of the RIXS spectra consistently.