Labeling interacting configurations through an analysis of excitation dynamics in a resonant photoemission experiment: the case of rutile TiO2

A detailed study of resonant photoemission at Ti L2,3 edges of insulating rutile TiO2−x thin film is presented. Pure TiO2 resonating structures, defect-related resonances, resonant Raman-Auger and normal LVV Auger emissions are tracked, including an unpredicted two-hole correlated satellite below th...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2013-02, Vol.25 (7), p.075502-075502
Main Authors: Drera, G, Sangaletti, L, Bondino, F, Malvestuto, M, Malavasi, L, Diaz-Fernandez, Y, Dash, S, Mozzati, M C, Galinetto, P
Format: Article
Language:English
Subjects:
Adsorbed layers and thin films
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Exact sciences and technology
Light
Materials Testing
Photoemission and photoelectron spectra
Physics
Scattering, Radiation
Staining and Labeling
Titanium - chemistry
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Summary:A detailed study of resonant photoemission at Ti L2,3 edges of insulating rutile TiO2−x thin film is presented. Pure TiO2 resonating structures, defect-related resonances, resonant Raman-Auger and normal LVV Auger emissions are tracked, including an unpredicted two-hole correlated satellite below the non-bonding part of the valence band. The analysis of excitation dynamics unambiguously addresses the origin of these features and, in particular, the extent of charge transfer effects on the Ti-O bonding in the valence band of rutile, disclosing further applications to the more general case of, formally, d0 oxides.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/25/7/075502