Abstract
Resonant-valence-band as well as core-level-photoemission measurements have been performed for depositions of Ce (\ensuremath{\sim}0.6-14 \AA{}) onto a Rh(100) substrate. The core-level spectra indicate formation of a mixed interface as Ce is deposited on Rh. The Rh 3d core-level emission could be deconvolved into three components, which are assigned to bulk Rh, surface Rh, and rhodium that has reacted with cerium. The Ce 4f emission intensity at the Fermi level is observed to move away from the Fermi level with increased Ce deposition in the submonolayer regime. The f-d hybridization is argued to increase with increasing amounts of Ce in the low-coverage regime. The present findings seem to favor the picture of bandlike behavior of strongly hybridized f electrons.
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