Photoemission studies of mixed valency:Ce(Ag0.3Pd0.7)3, CePd3, and CeRh3

Abstract
Photoemission studies of a Ce-compound system previously identified as spanning the entire mixed-valent range are presented. Valence-band spectra of Ce(Ag0.3Pd0.7)3, CePd3, CeRh3, and LaPd3 suggest that Ce in CePd3 is 3 + -like while in CeRh3 it is more 4 + -like. However, resonant photoemission and partial-yield spectra show that Ce in CeRh3 is not in a formal f0 configuration as has been widely accepted.