Skip to main content
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

Inconsistencies with the single-impurity Anderson model in photoelectron spectra of cerium heavy fermion compounds

  • Author(s): Joyce, JJ;
  • Arko, AJ;
  • Lawrence, J;
  • Canfield, PC;
  • Fisk, Z;
  • Bartlett, RJ;
  • Thompson, JD;
  • Smith, JL
  • et al.

A series of cerium heavy fermion compounds have been studied in order to check for the systematics with TK and the temperature dependence of the Kondo resonance predicted by the Kondo model. Neither the systematics nor the temperature dependence is found, the latter primarily determined from a detailed study in CeSi2. The qualitative shapes of the features at EF remain nearly constant irrespective of TK, while all the temperature dependence can be explained as resulting from phonon broadening of core-like states as well as Fermi function broadening. In addition, if the d electron contribution to the spectra is subtracted, one obtains a symmetric, lorentzian line shape for the "main" 4f peak. © 1992.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View