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- W156664424 abstract "The change of atomic structures and compositional ratios by isochronal annealing of Ag-Cu binary adsorbates at the Si(111) surface has been studied by means of LEED-AES-RBS techniques at temperature from 200 to 450°C. It is found that the Cu/Si(111)- 3 × 3 3-Ag surfaces show the 3 × 3 structure by annealing at 200°C and that the Cu coverage by AES decreases to OML, while the Ag coverage by AES shows almost no change with increasing the temperature up to 350°C. On the other hand, the Ag/Si(111)-quasi5×5-Cu surfaces show a mixed structure of 3 × 3 +quasi5×5 by annealing at 200°C and that the Cu coverage by AES decreases to (1-ϑ Ag 0 ) ML, where ϑ Ag 0 is the initial Ag coverage, while the Ag coverage by AES also shows no change at all. Moreover, it is found that Cu atoms, which have diffused into the bulk from the surface owing to occupation of Ag by the lower temperature annealing, segregate back to the topmost surface when the Ag atoms decay from the surface by the post higher temperature annealing. From these results, it is concluded that Ag and Cu atoms do not interact with each other on Si(111) surfaces." @default.
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- W156664424 date "1994-01-01" @default.
- W156664424 modified "2023-09-24" @default.
- W156664424 title "The change of atomic structures and compositional ratios by thermal annealing of 2D Ag-Cu binary adsorbates on the Si(111) surface" @default.
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- W156664424 doi "https://doi.org/10.1016/b978-0-444-81889-8.50074-2" @default.
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