The electronic structure of SrTiO3 from a direct-transition analysis of angle-resolved photoemission data |
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| Institution: | 1. Chemistry Department, Manchester University, Manchester M13 9PL, U.K.;2. Chemistry Department, Manchester University, Manchester M13 9PL, U.K.;3. Science and Engineering Research Council, Daresbury Laboratory, Warrington, WA4 4AD, U.K.;1. Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland;2. Institute of Physical Chemistry, Polish Academy of Science, Kasprzaka 44/52, 01-244 Warsaw, Poland;3. Department of Solid State Physics, Gdansk University of Technology, 80-233 Gdansk, Poland;1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China;2. Key Laboratory for Special Functional Materials in Jilin Provincial Universities, Jilin Institute of Chemical Technology, Jilin, 132022, China |
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| Abstract: | Angle-resolved photoemission spectra of SrTiO3(100) have been recorded in the range 18eV⩽ hν⩽ 50eV. The results have been interpreted using a direct transition model and a free-electron like final state, yielding empirical Δ-line dispersion relations. While in overall agreement with available band structure calculations, significant discrepancies are revealed. In addition, resonance photoemission above the Ti 3p threshold has been used to identify regions of Ti 3d mixing in the mainly 0 2p valence bands, the results being consistent with theoretical models. |
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