High-resolution K and L Auger electron spectra induced by single- and double-electron capture from H 2 , He, and Xe atoms to C</mml:mi…
1987; American Institute of Physics; Volume: 35; Issue: 12 Linguagem: Inglês
10.1103/physreva.35.4988
ISSN0556-2791
Autores Tópico(s)Advanced Chemical Physics Studies
ResumoThe Auger electron emission from ${\mathrm{C}}^{3+}$ and ${\mathrm{C}}^{2+}$ ions after double-electron capture from He, ${\mathrm{H}}_{2}$, and Xe atoms in a single collision with ${\mathrm{C}}^{5+}$ and ${\mathrm{C}}^{4+}$ ions and after one-electron capture into K-shell excited ${\mathrm{C}}^{4+}$ ions was measured under zero degrees with high resolution. The nl, n'l' distribution of doubly excited states induced by capture are discussed in the framework of previously established classical over-barrier and Landau-Zener models. Evidence for two-electron transfers in a one-step process is outlined. The spectral features indicate spin conservation during capture, electron transfers with core excitation, contributions from endoergic capture, post-collision line broadenings, and cascade channels.
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