T. Konishi et al., PHOTOEMISSION AND INVERSE-PHOTOEMISSION STUDY OF FERROMAGNETIC VALENCE FLUCTUATING SYSTEM CEFE2, Journal of electron spectroscopy and related phenomena, 88, 1998, pp. 303-307
Various electron-spectroscopic results including core-level X-ray phot
oemission, X-ray absorption, Ce 3d-4f and 4d-4f resonant photoemission
, and inverse-photoemission spectroscopy on the valence fluctuating fe
rromagnet CeFe2 are presented and analyzed with model calculations usi
ng the Anderson-impurity Hamiltonian. Surface effects on the spectra a
re taken into account in the analysis. The valence-band spectra are al
so compared with the band-structure density of states calculated using
the local-spin-density approximation. The validity of describing the
Ce 4f states as a localized impurity level and in the 4f band picture
is discussed. (C) 1998 Elsevier Science B.V.