L3 and M4,5 absorption edges of intermediate valent cerium unravelled by resonant photoemission and resonant Auger spectroscopy.
In CeRh3 and CeTRh3 compotmds, strong resonant effects are observed in the Ce 3d and 4d photoemission spectra at the Ce L3 and M4,5 absorption edges respectively. These resonm~ces show unambiguously that interference effects exist in core level spectroscopies. In the CeRh~ mixed valent compound, the resonances of photoenfission peaks corresponding to 4f °, 4t a and 4f 2 final state character occur at different photon energies, making it possible to mu'avel the X-ray absorption profiles. Moreover, resonant L31Vh,sN4.5 Rmnan Auger lines are observed up to 10 eV above the L3 absorption edge, showing the strong localized character of the core excited state.