Angle-resolved photoemission studies of planar and stepped oxide surfaces

G. N. Raikar, C. A. Muryn, P. J. Hardman, P. L. Wincott, G. Thornton, D. W. Bullett, P. A.D.M.A. Dale

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of surface imperfections on the angle-resolved photoemission spectra of planar and stepped (100) surfaces of TiO2 and SrTiO 3 have been measured. Normal emission data, analysed using the direct transition model, are compared with a calculated ab initio bulk band structure for the Gamma - Delta -X direction of rutile TiO2 and a published band structure calculation for the Gamma -X direction of SrTiO3. Selection rules are used to identify the symmetry of bands and resolve the rather broad spectral features. There is a close correlation between theory and experiment. The results for the stepped surfaces are little different to the planar surface data.

Original languageEnglish
Article number055
Pages (from-to)S357-S362
JournalJournal of Physics: Condensed Matter
Volume3
Issue numberS
DOIs
Publication statusPublished - 1991

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