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MO: Molekülphysik
MO 22: Poster I
MO 22.28: Poster
Samstag, 5. März 2005, 10:30–12:30, Poster HU
Detailed analysis of normal and resonant Auger spectra in H2S — •M Poiguine1, R Püttner1, M Martins2, V Pennanen2, M Jurvansuu2, Y Jiang1, S Aksela2, and G Kaindl1 — 1Freie Universität Berlin, D-14195 Berlin — 2University of Oulu, Department of Physical Sciences, 90401 Oulu, Finland
High-resolution S 2p−1 photoelectron spectra (PES) and 2p−1 → X1 A1 (2b1−2) normal Auger electron spectra (AES) of H2S have been measured using different photon energies. These spectra were fitted simultaneously with a model that includes spin-orbit and ligand-field splittings, post-collision interaction, and vibrational fine structures in the core-excited and final states, as well as vibrational and electronic lifetime interference. This elaborated fit analysis resulted in an excellent agreement with the spectra and allowed to derive detailed information about the geometry and potential energy surfaces in the core-hole and final states. In addition, detailed analysis of photoabsorption spectra in the energy region between 167.3 and 168.3 eV are also presented, along with the corresponding resonant Auger spectra.