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	Determination of a (2 root 2 x root 2)R45 degrees structure formed by coadsorption of Li and Mg on a Cu(001) surface
	Chen, MS ; Mizuno, S ; Tochihara, H ; Chen MS(陈明树)
	2001
关键词	copper alkali metals alkaline earth metals low energy electron diffraction (LEED) low index single crystal surfaces surface structure, morphology, roughness, and topography
英文摘要	The coadsorption of Li and Mg on Cu(001) at room temperature was studied by low-energy electron diffraction (LEED). A (2 root2 x root2)R45 degrees structure was observed and determined by a tensor LEED analysis. It is an ordered mixed phase, in which Mg atoms are located on fourfold substitutional sites, while Li atoms occupy surface hollow sites, instead of the separation into c(2 x 2)-Mg and (2 x 1)-Li phases formed in the individual adsorption. The (2 root2 x root2)R45 degrees structure is comprised of alternative atomic-rows of substitutional Mg atoms and hollow-site Li atoms aligned along the [010] direction. The stability of this structure is discussed in terms of adsorption energy of Li and Mg atoms and the displacement of surface Cu atoms. (C) 2001 Elsevier Science B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/64126]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Chen, MS,Mizuno, S,Tochihara, H,et al. Determination of a (2 root 2 x root 2)R45 degrees structure formed by coadsorption of Li and Mg on a Cu(001) surface[J],2001.
APA	Chen, MS,Mizuno, S,Tochihara, H,&陈明树.(2001).Determination of a (2 root 2 x root 2)R45 degrees structure formed by coadsorption of Li and Mg on a Cu(001) surface..
MLA	Chen, MS,et al."Determination of a (2 root 2 x root 2)R45 degrees structure formed by coadsorption of Li and Mg on a Cu(001) surface".(2001).

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