Decay channels of the 5d. -->. 5f excitation in thorium

Journal Article · Wed May 15 04:00:00 EDT 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.6411· OSTI ID:5757066

Fujimori, A; Weaver, J H

The valence bands and Auger emission of thorium have been studied in the 5d..-->..5f excitation region using synchrotron radiation. Three decay channels of the 5d hole have been identified: ordinary Auger deexcitation, resonant Auger deexcitation, and direct recombination. The latter two originating from strongly exchange-coupled 5d/sup 9/5f/sup 1/ virtually excited states. A kinetic energy shift of the O/sub 5/VV Auger line is observed around a 5d..-->..5f resonant absorption peak at h..nu.. = 89 eV and is attributed to overlap of the above two Auger features. The relative importance of these decay channels is discussed in terms of the discrete 5d/sup 9/5f/sup 1/..-->..continuum 5d/sup 9/epsilonf transition probability and the 5d..-->..5f dipole oscillator strength of the 5d/sup 9/5f/sup 1/ multiplet state.

• Research Organization: Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
• OSTI ID: 5757066
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 31:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDES
AUGER ELECTRON SPECTROSCOPY
BREMSSTRAHLUNG
CRYSTAL FACES
DE-EXCITATION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY-LEVEL TRANSITIONS
METALS
OSCILLATOR STRENGTHS
RADIATIONS
RESONANCE
SPECTROSCOPY
SYNCHROTRON RADIATION
THORIUM
VALENCE