Relaxation dynamics of SF6 studied by energy resolved electron ion coincidence technique

Summary, in English

The mass spectra from the SF6 molecule acquired by energy-resolved electron ion coincidence (EREICO) technique using (1t1g + [5t1u,1t2u]), (3eg + 1t2g), 4t1u, and 5a1g electrons after both valence and S 2p−1 6a1g core excitation reveal a strong selectivity in the dissociation from these states. From the comparison of the obtained spectra, the influence of the core-excited state in the relaxation pathway of the molecule is studied. The S 2p → 6a1g core excitation does not affect the relaxation dynamics after participator Auger decay to the (1t1g + [5t1u,1t2u])−1 and (4t1u)−1 states, but it alters the relaxation dynamics after participator Auger decay to the (3eg + 1t2g)−1 and (5a1g)−1 states with respect to the decay processes after direct excitation of the same orbitals. These observations point to core excitation induced dissociation in the SF6 molecule.

• Author: Marek Stankiewicz; Jaume Rius i Riu; Jesús Álvarez Ruiz; Peter Erman; Paul Hatherly; Antti Kivimäki; Emilio Melero García; Elisabeth Rachlew
• Publishing year: 2004
• Language: English
• Pages: 369-375
• Publication/Series: Journal of Electron Spectroscopy and Related Phenomena
• Volume: 137-140
• Links: http://dx.doi.org/10.1016/j.elspec.2004.02.113
• Document type: Journal article
• Publisher: Elsevier
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Keywords: relaxation dynamics; SF6 molecule; ion coincidence technique
• Conference name: ICESS-9, 9th International Conference on Electronic Spectroscopy and Structure
• Conference date: 2003-06-30 - 2003-07-04
• Conference place: Uppsala, Sweden
• Status: Published
• ISBN/ISSN/Other: ISSN: 0368-2048