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arXiv 0904.4170cond-mat.mtrl-scicond-mat.mes-hall
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Cu(111)表面双层Co纳米岛上Ag的生长与结构

Growth and structure of Ag on bilayer Co nanoislands on Cu(111)

Jakob Bork, Jens Onsgaard, Lars Diekhöner

摘要:

我们利用扫描隧道显微镜研究了Ag在Cu(111)表面双层高Co纳米岛上的生长。已知磁性纳米结构的贵金属覆盖影响磁性,因此生长的知识是重要的。我们发现,银优先成核的钴纳米岛最初离开自由铜网站清洁。此外,我们观察到,那些被Ag覆盖的Co岛几乎完全被覆盖,从而形成了完美的Ag/Co/Cu(111)多层体系。我们观察到Co/Cu(111)上Ag覆盖层的(9 $\times$ 9)重构。

英文摘要:

We have studied the growth of Ag on bilayer high Co nanoislands on Cu(111) using Scanning Tunneling Microscopy. Noble metal capping of magnetic nanostructures is known to influence the magnetism and knowledge of the growth is therefore important. We find that Ag preferentially nucleates on the Co nanoislands initially leaving the free Cu sites clean. Furthermore we observe, that those Co islands which are capped with Ag are almost completely capped thus making a perfect multilayered system of Ag/Co/Cu(111). We observe a (9$\times$9) reconstruction of the Ag overlayer on Co/Cu(111).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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