Resonant double excitation observed in the near-threshold evolution of the photoexcited F K alpha satellite intensity in NaF.
We present a precise measurement of the photoexcited F K alpha satellite intensity's evolution for NaF from [1s2p] double excitation threshold to saturation. A direct comparison between the observed evolution and the x-ray absorption spectrum was successfully made, and the contribution of multielectron transitions to the absorption spectrum was clearly resolved for the first time. A resonance-like feature observed in the near-threshold evolution is attributed to the [1s2p]3p(2) resonant double excitation as confirmed by calculations.
Oura
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M
RIKEN, Harima Institute, 1-1-1 Kouto, Mikazuki, Sayo, Hyogo 679-5148, Japan.
Mukoyama
T
T
Taguchi
M
M
Takeuchi
T
T
Haruna
T
T
Shin
S
S