High-energy-spectroscopy study of the Pd-Ce system
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We report x-ray-absorption and photoemission measurements on crystalline and amorphous Pd/sub 1-//sub x/Ce/sub x/ alloys. In this system, cerium ions present a valence change induced by concentration and a correlation between the cerium electronic configuration and the density of occupied states. The centroid of the Pd 4d--related band moves away from the Fermi level with increasing cerium content, leading to a decrease in the mixing between 4f and conduction electrons and then to the stabilization of the cerium trivalent state. The effect of structural disorder on the cerium valence anomaly in amorphous alloys is also discussed.
- Research Organization:
- Laboratoire de Physique du Solide, Universite de Nancy I, Boite Postale No. 239, 54506 Vandoeuvre-les-Nancy Cedex, France Batiment 209D, 91405 Orsay Cedex, France
- OSTI ID:
- 6881484
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:6; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION SPECTRA
ALLOYS
AMORPHOUS STATE
BREMSSTRAHLUNG
CERIUM ALLOYS
CRYSTALS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
HYBRIDIZATION
IONIZING RADIATIONS
MICROSCOPY
MIXTURES
PALLADIUM ALLOYS
PHOTOELECTRON SPECTROSCOPY
PLATINUM METAL ALLOYS
RADIATIONS
RARE EARTH ALLOYS
SOLID SOLUTIONS
SOLUTIONS
SPECTRA
SPECTROSCOPY
SYNCHROTRON RADIATION
ULTRAHIGH VACUUM
ULTRAVIOLET RADIATION
VALENCE
X RADIATION
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION SPECTRA
ALLOYS
AMORPHOUS STATE
BREMSSTRAHLUNG
CERIUM ALLOYS
CRYSTALS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
HYBRIDIZATION
IONIZING RADIATIONS
MICROSCOPY
MIXTURES
PALLADIUM ALLOYS
PHOTOELECTRON SPECTROSCOPY
PLATINUM METAL ALLOYS
RADIATIONS
RARE EARTH ALLOYS
SOLID SOLUTIONS
SOLUTIONS
SPECTRA
SPECTROSCOPY
SYNCHROTRON RADIATION
ULTRAHIGH VACUUM
ULTRAVIOLET RADIATION
VALENCE
X RADIATION