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Theoretical study of plasmon losses from Li 1s level in core‐level photoemission spectra
Author(s) -
Niki K.,
Yamamura N.,
Ohori Y.,
Kazama M.,
Fujikawa T.,
Kövér L.
Publication year - 2014
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.5504
Subject(s) - photoelectric effect , spectral line , plasmon , condensed matter physics , core (optical fiber) , surface plasmon , physics , atomic physics , materials science , optics , quantum mechanics
We have studied the surface and bulk plasmon losses associated with Li 1s photoemission. Here, full multiple scatterings of photoelectrons are taken into account before and after the plasmon losses within the quantum Landau formula that can describe overall features of the photoemission bands. We compared the depth profiles of the Li 1s single‐loss spectra with full multiple scatterings and without elastic scatterings. They are strongly influenced by the elastic scatterings. The model accounting for the full multiple scatterings gives a rapidly decaying function of the depth because of the defocusing effects. Copyright © 2014 John Wiley & Sons, Ltd.