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handle: 10261/26271
Low energy electron diffraction (LEED) and photoelectron spectroscopy (PES) have been employed to study the (100) SrTiO3 surface annealed in ultra high vacuum. The annealing was performed up to 830°C. After annealing at 830°C, we have observed from PES spectra the appearance of the conduction band and from LEED patterns the (√5 x √5)R 26.6° superstructure. Both features seem to have the same origin: the ordering of oxygen vacancies.
Peer reviewed
PES, Ordered oxygen vacancies, LEED, Strontium titanate, Reduction
PES, Ordered oxygen vacancies, LEED, Strontium titanate, Reduction
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