Abstract
The surface composition of a (√5 × √5)-R26.6° (Rt5) reconstruction of a strontium titanate (001) single crystal surface was characterized by X-ray photoelectron spectroscopy (XPS), and its atomic surface structure was determined by a combination of low energy electron diffraction (LEED) and X-ray photoelectron diffraction (XPD). The comparison between experimental and theoretical XPD results involving multiple scattering calculations indicated that the analyzed Rt5 reconstruction of the SrTiO3 (001) surface has two possible terminations: 40% of SrO and 60% of TiO2.
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