Lithium 1s main-line and satellite photoemission: Resonant and nonresonant behavior
We present experimental results on core-level photoemission of atomic lithium, leading to both main-line and satellite states of the Li/sup +/ ion (1snl where n = 2--5). We compare the measured 1s2s /sup 1,3/S main-line cross sections with recent relaxed Hartree-Fock calculations and with previous experimental results, finding reasonable agreement in both cases. For the n = 3 satellite, our results disagree with earlier photoemission work which was complicated by additional peaks at 52 eV kinetic energy. We discuss possible explanations for these extra peaks. For the doubly excited state 1s(3s3p) at 71.14 eV, we present total cross-section results in good agreement with previous photoabsorption measurements. The qualitative differences among our partial cross-section profiles are discussed, and the phase for the total cross section is rationalized by estimating the signs of pertinent matrix elements.
- Research Organization:
- Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory 0 Department of Chemistry, University of California, Berkeley, California 94720
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6266979
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 36:7; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
BREMSSTRAHLUNG
CHARGED PARTICLES
CORRELATIONS
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRON CORRELATION
ELECTRON SPECTRA
ELEMENTS
IONIZATION
IONS
LITHIUM
LITHIUM IONS
METALS
PHOTOIONIZATION
RADIATIONS
RESONANCE
SPECTRA
SYNCHROTRON RADIATION