Fig. 2: dd-excitations of Cu-I and Cu-II.
From: Site-specific electronic and magnetic excitations of the skyrmion material Cu2OSeO3
a Resonant inelastic X-ray scattering (RIXS) spectra as a function of incident photon energy, for a selected incident energy range: 928.6 to 932.6 eV. b Crystal-field splittings of the Cu-I (Cu-II) 3d orbitals in D3h (C4v) point group symmetry, respectively. The 3d orbitals are defined with respect to the local Cartesian coordinates indicated in blue. The vertical arrows labeled E1 to E5 associate the dd-excitations with the respective initial and final 3d levels. c, d Calculated RIXS responses for the individual Cu-I and Cu-II ions.
