Shirley EL, Weiland C, Woicik JC. Partial densities of states from x-ray absorption and Auger electron spectroscopy: Use of core-hole memory.
PHYSICAL REVIEW. B 2022;
40:10.1116/6.0001432. [PMID:
36590315 PMCID:
PMC9805322 DOI:
10.1116/6.0001432]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/23/2021] [Indexed: 06/17/2023]
Abstract
Ag L 3 edge x-ray absorption and L 3 - M 4,5 M 4,5 Auger electron spectra have been measured and simulated for a variety of x-ray electric-field polarization and Auger electron emission directions. The theory relies on density-functional theory, use of the Bethe-Salpeter equation, atomic multiplet theory, and a simplified model for the Auger line shape and its dependence on photon energy. We also demonstrate that partial densities of states for d T 2g , d Eg , and s Ag symmetry partial-wave channels at the Ag site in the solid can be deduced from the experimental measurements with only atomic theoretical input, i.e., with no solid-state theory other than assuming a Fermi edge.
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