吸附
氧气
铜
曲面重建
饱和(图论)
散射
离子
工作职能
化学
图层(电子)
分析化学(期刊)
低能离子散射
曲面(拓扑)
表层
材料科学
结晶学
化学物理
物理化学
纳米技术
冶金
光学
物理
几何学
数学
有机化学
组合数学
色谱法
标识
DOI:10.1016/0039-6028(83)90258-3
摘要
Low-energy He+ ion scattering (IS) in combination with AES, LEED and work function measurements has been applied for the determination of surface reconstruction of Cu(111) upon oxygen adsorption. IS data clearly indicate that oxygen is not significant incorporated into the bulk at room temperature adsorption, however the surface shows reconstruction by displacement of Cu atoms by 0.3 Å. The disappearance of structure of both CuIS and OIS in the "♥in pattern" demonstrate the development of a disordered layer of reconstruction centres. At saturation coverage, a rough and dis-ordered oxygen-copper surface layer is present.
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