f-electron correlations in nonmagnetic Ce studied by means of spin-resolved resonant photoemission

S.-W. Yu, T. Komesu, B. W. Chung, G. D Waddill, S. A. Morton, and J. G. Tobin
Phys. Rev. B 73, 075116 – Published 23 February 2006

Abstract

We have studied the spin-spin coupling between two f electrons of nonmagnetic Ce by means of spin-resolved resonant photoemission using circularly polarized synchrotron radiation. The two f electrons participating in the 3d524f resonance process are coupled in a singlet while the coupling is veiled in the 3d324f process due to an additional Coster-Kronig decay channel. The identical singlet coupling is observed in the 4d4f resonance process. Based on the Ce measurements, it is argued that spin-resolved resonant photoemission is one approach to study the correlation effects, particularly in the form of spin, in the rare earths.

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  • Received 14 October 2005

DOI:https://doi.org/10.1103/PhysRevB.73.075116

©2006 American Physical Society

Authors & Affiliations

S.-W. Yu1,*, T. Komesu2, B. W. Chung1, G. D Waddill2, S. A. Morton1,2, and J. G. Tobin1

  • 1Lawrence Livermore National Laboratory, Livermore, California 94550, USA
  • 2Physics Department, University of Missouri-Rolla, Rolla, Missouri 65409, USA

  • *Corresponding author. Electronic address: YU21@LLNL.GOV

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Issue

Vol. 73, Iss. 7 — 15 February 2006

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