https://doi.org/10.1007/s100510050268
High-resolution resonant photoemission study of the 4f states in a typical Kondo system: CePd3
1
Institut de Physique Appliquée, École
Polytechnique Fédérale, 1015 Lausanne, Switzerland
2
Université H. Poincaré, 54506
Vandœuvre, France
Corresponding author: a grioni@dpmail.epfl.ch
Received:
13
October
1997
Accepted:
21
January
1998
Published online: 15 April 1998
We exploited resonant photoemission at the Ce absorption
edge to investigate the Ce 4f states in
. High resolution spectra
reveal, near the Fermi level, the characteristic fine structure of intermediate
valence Ce compounds. The spectral lineshape is consistent with the typical
"Kondo" character of CePd, but the prominent
ionization peak
is found at the unusually low binding energy of 1 eV. We
briefly discuss the implications of these observations.
PACS: 71.28.+d – Narrow-band systems; intermediate-valence solids / 78.90.+t – Other topics in optical properties, condensed matter spectroscopy and other interactions of particles and radiation with condensed matter / 79.60.-i – Photoemission and photoelectron spectra
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998