Effects of Initially Excited Hole States on the Soft-X-Ray Emission Spectra of Metals
- 15 November 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 8 (10), 4578-4584
- https://doi.org/10.1103/physrevb.8.4578
Abstract
A general theory of the effects of Coulomb excitation of a deep hole state in a solid on the subsequent soft-x-ray emission line shape is given. For excitation energies well above threshold it is shown that the emission corresponds to the decay of a nonrelaxed initial hole state which is suddenly introduced into the solid. Using a weak-coupling approximation, a generalization of the Weisskopf-Wigner formula for radiative line shapes is derived which includes the enhancement of the high-energy tail of an emission line or edge due to initial excitations. Comparison of the approximate results with measurements of the edge of Li metal provides a reasonable explanation of the observed discrepancy between absorption and emission line shapes.
Keywords
This publication has 13 references indexed in Scilit:
- Many-Electron Theory of Nondirect Transitions in the Optical and Photoemission Spectra of MetalsPhysical Review B, 1970
- Singularities in the X-Ray Spectra of MetalsPhysical Review B, 1970
- Singularities in the X-Ray Absorption and Emission of Metals. II. Self-Consistent Treatment of DivergencesPhysical Review B, 1969
- Singularities in the X-Ray Absorption and Emission of Metals. III. One-Body Theory Exact SolutionPhysical Review B, 1969
- Singularities in the X-Ray Absorption and Emission of Metals. I. First-Order Parquet CalculationPhysical Review B, 1969
- Perturbation Expansion for Real-Time Green's FunctionsJournal of Mathematical Physics, 1968
- Excitons in Degenerate SemiconductorsPhysical Review B, 1967
- Correlations in Space and Time and Born Approximation Scattering in Systems of Interacting ParticlesPhysical Review B, 1954
- ber die nat rliche Linienbreite in der Strahlung des harmonischen OszillatorsThe European Physical Journal A, 1930
- Berechnung der nat rlichen Linienbreite auf Grund der Diracschen LichttheorieThe European Physical Journal A, 1930