Resonant photoemission as a tool to study f and d electrons in actinide compounds

Journal Article · Sun Aug 15 04:00:00 EDT 1982 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.26.1842· OSTI ID:7088018

Reihl, B; Martensson, N; Eastman, D E; Arko, A J; Vogt, O

Using synchrotron radiation in the energy range 60< or =h..nu..< or =130 eV, we have measured h..nu..-dependent photoemission energy distribution curves and constant-initial-state spectra from single crystals of U/sub x/,Th/sub 1-x/Sb, UTe, UO/sub 2/, and UPd/sub 3/. The U 5f and U and Th 6d conduction bands, as well as the Sb and Te 5p valence band emission, all exhibit Fano-like resonance behavior at the 5d core ionization thresholds. The 5f emission shows the strongest intensity variation, which can be explained by the super-Coster-Kronig character of the decay of the autoionizing core excited state. Thus f and d emission features in the photoemission spectra are unambiguously identified by their different resonance behavior. It is concluded that the spectra are dominated by localized 5f states in all of these compounds.

• Research Organization: IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598
• OSTI ID: 7088018
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 26:4; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
360204 -- Ceramics
Cermets
&amp; Refractories-- Physical Properties
ACTINIDE COMPOUNDS
ACTINIDES
AUTOIONIZATION
BAND THEORY
BREMSSTRAHLUNG
CHALCOGENIDES
CRYSTALS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
IONIZATION
METALS
MONOCRYSTALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
RADIATIONS
RESONANCE
SPECTROSCOPY
SYNCHROTRON RADIATION
TELLURIDES
TELLURIUM COMPOUNDS
THORIUM
TRANSITION ELEMENT COMPOUNDS
URANIUM
URANIUM COMPOUNDS
URANIUM OXIDES
URANIUM TELLURIDES