Symmetry of the1score exciton in diamond studied using x-ray Raman scattering

摘要: The detailed electronic structure of diamond has been studied by x-ray Raman scattering at the $1s$ excitation threshold. By combining experimental high-resolution inelastic spectra with a computational scheme based on real-space multiple approach, symmetry-resolved $s$ and $p$ angular projected unoccupied local densities states have extracted. results unambiguously show that extensively core exciton $p$-like symmetry. Furthermore, effects various numerical uncertainties extraction are carefully analyzed discussed giving important insight to applicability this promising complementary technique other systems.