Comparison between resonant L-alpha emission spectra and resonant LMM Auger spectra of yttrium compounds

Resonant L-alpha x-ray emission spectra (RXES) and resonant LMM Auger emiss ion spectra (RAES) of Yttrium compounds were measured across YLIII absorpti on threshold. When the incident photon energy is bellow the absorption thre shold, only Raman scattering component is commonly observed in both spectra . Above the absorption threshold, Raman and normal L-alpha (or normal LMM A uger) emission peaks are observed in insulator samples. These spectral feat ures are almost same in both RXES and RAES processes, except for the relati ve intensity ratio between these Raman peaks and normal L-alpha (or normal LMM Auger) emission peaks. Comparing these two spectra, useful information about the deexcitation of core hole can be obtained.