No multiatom resonances observed in x-ray fluorescence
2000; American Physical Society; Volume: 62; Issue: 23 Linguagem: Inglês
10.1103/physrevb.62.15427
ISSN1095-3795
AutoresA. Moewes, E.Z. Kurmaev, D. L. Ederer, T. A. Callcott,
Tópico(s)Crystallography and Radiation Phenomena
ResumoWe present a study of the effects of interatomic multiatom resonant photoemission monitored by soft x-ray emission. The partial fluorescence yield of certain transitions $\mathrm{F}K\ensuremath{\alpha}$ and $\mathrm{C}K\ensuremath{\alpha}$ is measured while the excitation energy is scanned through the higher lying thresholds $(\mathrm{La}{M}_{4.5}$ and $\mathrm{Ti}{L}_{2,3},$ respectively) of the neighboring atoms in the multicomponent systems $({\mathrm{LaF}}_{3}{,\mathrm{T}\mathrm{i}}_{x}{\mathrm{Nb}}_{1\ensuremath{-}x}\mathrm{C}).$ No evidence for a resonant enhancement in the fluorescence signal as suggested by the multiatom resonant photoemission effect is found.
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