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- W2885452605 abstract "Surface structure, surface energy, surface grand potential, and electronic structure of Al‐ and Sr‐terminated Al 4 Sr(001) surfaces were analyzed using a first‐principles method based on density functional theory. It is revealed that the effects of relaxation are mainly localized within the top three atomic layers for both terminations, and the largest change in interlayer spacing occurs at the first layer of the Sr‐terminated surface. The surface energy calculation results indicate that the Al‐terminated surface is more stable, and the Sr‐terminated surface is more active. The higher surface energy comes from the unsaturated chemical bonds existing on the surface. In the ideal metallic system of Al‐Sr, the grand potential of the Sr‐terminated surface is lower than that of the Al‐terminated surface, indicating that the Sr‐terminated surface could be more readily observed under experimental conditions. The two terminations of Al 4 Sr(001) exhibit both metallic and covalent features, as does bulk Al 4 Sr." @default.
- W2885452605 created "2018-08-22" @default.
- W2885452605 creator A5007788412 @default.
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- W2885452605 date "2018-08-14" @default.
- W2885452605 modified "2023-09-26" @default.
- W2885452605 title "Structural and electronic properties of the Al<sub>4</sub>Sr(001) surface: A first-principles study" @default.
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- W2885452605 doi "https://doi.org/10.1002/sia.6521" @default.
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