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Author Krause, M. O. ♦ Caldwell, C. D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ATOMIC AND MOLECULAR PHYSICS ♦ BERYLLIUM ♦ AUGER EFFECT ♦ MANY-BODY PROBLEM ♦ PHOTOIONIZATION ♦ CROSS SECTIONS ♦ DE-EXCITATION ♦ ELECTRON CORRELATION ♦ K SHELL ♦ S STATES ♦ THRESHOLD ENERGY ♦ ALKALINE EARTH METALS ♦ CORRELATIONS ♦ ELECTRONIC STRUCTURE ♦ ELEMENTS ♦ ENERGY ♦ ENERGY LEVELS ♦ ENERGY-LEVEL TRANSITIONS ♦ IONIZATION ♦ METALS ♦ Atomic, Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
Abstract Photoionization in atomic beryllium has been studied in detail near the 1s threshold. Multiple excitation to the 1s(2s2p /sup 1,3/P) states, i.e., conjugate shakeup, is found to be unusually strong, 40% of single excitation. The /sup 3/P component rapidly loses strength with increasing photon energy, while the /sup 1/P component persists. The 1s2s2p states are highly aligned, as shown by the Auger-electron angular distribution. The A/sub 2/ value of -0.65 implies a d-wave contribution of 0.39. Our results indicate that resonances reported for the solid-state photoabsorption are of atomic origin.
Educational Use Research
Learning Resource Type Article
Publisher Date 1987-12-14
Publisher Department Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Publisher Place United States
Journal Phys. Rev. Lett.
Volume Number 59
Issue Number 24
Organization Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831


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