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- W2091277650 abstract "The electronic structures of Pt3Sn(111),Pt3Sn/Pt(111) and Pt2Sn/Pt(111) surfaces are studied using the linear-muffin-tin-orbital tight-binding method in the atomic-sphere approximation. Both ideal and rumpled surface terminations are considered. The hybridization between Pt d- and Sn p-electrons, respectively, leads to a lowering of the local density of electronic states at the Fermi level and to a downward shift of the Pt local d-band, which accounts for the lower reactivity of the Pt–Sn surfaces. The effect is more pronounced for rumpled surfaces. Generally, the situation is similar to that of bimetallic transition-metal surfaces. The initial-state approximation is used to predict Pt(4f) core-level shifts. We find moderate shifts of either sign, but the d-band centre of gravity moves to higher binding energies, as compared to Pt(111), in most cases. The correlation between the surface reactivity and core-level shifts, respectively, seems to be less favourable than at bimetallic transition-metal surfaces" @default.
- W2091277650 created "2016-06-24" @default.
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- W2091277650 date "1999-08-01" @default.
- W2091277650 modified "2023-10-15" @default.
- W2091277650 title "On the electronic structure of surface Pt–Sn alloys" @default.
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- W2091277650 doi "https://doi.org/10.1016/s0039-6028(99)00667-6" @default.
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