Photoelectron and photoion spectroscopy on atomic Lu in the region of the 5p excitation |
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| Authors: | C Gerth B Kanngießer M Martins P Sladeczek K Tiedtke P Zimmermann |
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| Institution: | Institut für Atomare und Analytische Physik, Technische Universit?t Berlin, Hardenbergstr. 36, 10623 Berlin, Germany, DE
Institut für Experimentalphysik, Freie Universit?t Berlin, Arnimallee 14, 14195 Berlin, Germany, DE
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| Abstract: | The resonances of atomic Lu have been investigated by photoelectron and photoion spectroscopy using monochromatized synchrotron
radiation in the vacuum ultraviolet energy region. The total photoion yield has been compared to calculations in which the
extended Fano theory (Mies formalism) and the Hartree-Fock method were applied. The resonance structure is dominated by the
spin-orbit splitting of the 5p core hole. In the photoion yield spectra of singly and doubly charged ions a high fraction of Lu2+ ions has been found in the region of the 5p
-1
(2
P
1/2
)nd resonances. Photoelectron spectra, recorded in this resonance region, have been investigated with respect to deexcitation
channels connected with Lu2+ ions. The 5p
-1
(2
P
1/2
)nd resonances predominantly autoionize by spin-flip into states, which decay in the second step into Lu2+ final ionic states.
Received: 2 September 1998 / Accepted: 17 September 1998 |
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| Keywords: | PACS 32 80 Fb Photoionization of atoms and ions [:AND:] 32 80 Hd Auger effects and innershell excitation or ionization |
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