AVS 52nd International Symposium
    Surface Science Friday Sessions
       Session SS2-FrM

Paper SS2-FrM5
Using Spin Resolved Resonant Photoemission to Probe Electron Correlations in Nonmagnetic Ce

Friday, November 4, 2005, 9:40 am, Room 203

Session: Electronic Structure of Surfaces
Presenter: S.-W. Yu, Lawrence Livermore National Lab
Authors: S.-W. Yu, Lawrence Livermore National Lab
T. Komesu, University of Missouri-Rolla
B.W. Chung, Lawrence Livermore National Lab
G.D. Waddill, University of Missouri-Rolla
J.G. Tobin, Lawrence Livermore National Lab
Correspondent: Click to Email
We have studied the spin-spin coupling between two f electrons of nonmagnetic Ce by means of spin resolved resonant photoemission. The two f electrons participating in the 3d5/2 to 4f resonance process are coupled in a singlet while the coupling is veiled in the 3d3/2 to 4f process due to an additional Coster-Kronig decay channel. Based on the Ce measurements, it is argued that spin resolved resonant photoemission is a unique approach to study the correlation effects, particularly in the form of spin, in the rare-earths and the actinides.