Resonant Auger spectrum following Kr:2p → 5s photoexcitation

Abstract

Resonant Auger electron spectra following Kr:2p → 5s photoexcitation have been measured for the first time using monochromatized undulator radiation and a cylindrical mirror electron energy analyser. It is found that the kinetic energy of the resonant Auger electron is higher than that of the corresponding normal Auger electron. The angular distribution of the resonant Auger electrons is nearly isotropic relative to the polarization direction of the incident light.

Variation in resonant Auger yields into the1G4sdotnlstates of Kr across the L3threshold

“…5s state, which is in agreement with previous studies [17,18,23]. The second structure stems from the excitation into the 4d orbital, as seen in the previous data [24].…”

“…Normal Auger electron spectra using charged-particle techniques were observed and analyzed, which showed that the 1 G 4 final state yields the strongest peak in the electron kinetic-energy region near 1460 eV [20][21][22]. The resonant Auger transitions were found from the 2p -1 nl states by the present authors, who used monochromatized undulator radiation combined with the grating monochromator having high resolving power [23,24].…”

Near K-edge Photoionization and Photoabsorption of Singly, Doubly, and Triply Charged Silicon Ions

“…The same holds for the Kr L 3 absorption measurements of Schmelz et al (1995). Nagaoka et al (2000) and Okada et al (2005) calibrated their energy scales by referring to the work of Wuilleumier (1971) as is also done here.…”

Experimental and theoretical study of the Kr L -shell Auger decay

“…According to the present calculations, the L 1 hole decays by about 90% via these Coster-Kronig processes, which leads to two consequences. First, this leads to a much larger lifetime broadening for the L 1 hole ( (L 1 ) theo = 4.28 eV [37]) as compared to the L 2 ( (L 2 ) theo = 1.31 eV [37]) and L 3 ( (L 3 ) theo = 1.17 eV [37], (L 3 ) exp = 1.152 (20) eV [38]) holes and results in significantly larger widths for the [38] and the N 3 ionization energy [39]. For an alignment to the two-hole binding energy the kinetic energies of the L 2 spectrum [panels (b)] and the L 1 spectrum [panels (c)] are higher by 52.6(1) and 246.3(6) eV, respectively.…”

“…According to the present calculations, the L 1 hole decays by about 90% via these Coster-Kronig processes, which leads to two consequences. First, this leads to a much larger lifetime broadening for the L 1 hole ( (L 1 ) theo = 4.28 eV[37]) as compared to the L 2 ( (L 2 ) theo = 1.31 eV[37]) and L 3 ( (L 3 ) theo = 1.17 eV[37], (L 3 ) exp = 1.152(20) eV[38]) holes and results in significantly larger widths for the L 1 M 2,3 M 4,5 and L 1 M 4,5 M 4,5 transitions as compared to the L 2 and L 3 Auger decays, and as a consequence to much lower peak intensities. Second,…”