Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic x-ray scattering

Academic Article

Abstract

  • The results of model calculations using exact diagonalization reveal the orbital character of states associated with different Raman loss peaks in Cu K-edge resonant inelastic x-ray scattering (RIXS) from La2CuO4. The model includes electronic orbitals necessary to highlight the nonlocal Zhang-Rice singlet, charge transfer, and d-d excitations, as well as states with apical oxygen 2pz character. The dispersion of these excitations is discussed with prospects for resonant final state wave-function mapping. A good agreement with experiments emphasizes the substantial multiorbital character of RIXS profiles in the energy transfer range 1-6 eV. © 2010 The American Physical Society.
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    Digital Object Identifier (doi)

    Author List

  • Chen CC; Moritz B; Vernay F; Hancock JN; Johnston S; Jia CJ; Chabot-Couture G; Greven M; Elfimov I; Sawatzky GA
  • Volume

  • 105
  • Issue

  • 17