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Partial densities of states from x-ray absorption and Auger electron spectroscopy: Use of core-hole memory
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 multipl...
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| Published in: | Journal of vacuum science & technology. A, Vacuum, surfaces, and films Vacuum, surfaces, and films, 2022-03, Vol.40 (2) |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites |
| Online Access: | Get full text |
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| Summary: | 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
2
g,
d
E
g, and
s
A
g 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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| ISSN: | 0734-2101 1520-8559 |
| DOI: | 10.1116/6.0001432 |