Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces
Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces
复制标题
外延生长石墨烯和 Ru(0001) 表面界面处金属岛和薄膜的插层
DOI：
10.1063/1.3653241
复制
发表时间：
2011-10-17
影响因子：
4
通讯作者：
Gao, H. -J.
中科院分区：
文献类型：
--
作者：
Huang, Li;Pan, Yi;Gao, H. -J.
我们报道了七种金属-Pt，Pd，Ni，Co，Au，In和Ce-在外延生长的石墨烯层和Ru（0001）衬底之间的界面处的嵌入。原子分辨率扫描隧道显微镜图像的完美的石墨烯晶格上获得的这些插层金属，表明高品质的原始石墨烯，在最后，不受干扰的插入。提出了一种基于模型的理论计算的嵌入机制：金属原子辅助的缺陷形成和C-C键在高温下的自修复。这些插层材料包括贵金属、磁性金属、IIIA族金属和稀土金属，这表明通过外延石墨烯在Ru（0001）上的插层是金属的通用方法。(C)2011年美国物理学会。[doi：10.1063/1.3653241]
We report on intercalation of seven kinds of metals-Pt, Pd, Ni, Co, Au, In, and Ce-at the interface between an epitaxially grown graphene layer and a Ru(0001) substrate. Atomic resolution scanning tunneling microscopy images of perfect graphene lattice are obtained on top of these intercalated metals, showing that the high quality of the original graphene is, in the end, undisturbed by the intercalation. A model based theoretical calculation is proposed for the intercalation mechanism: metal atom-aided defect formation and self-healing of C-C bonds at high temperature. These intercalated materials include noble metals, magnetic metals, a IIIA group metal, and a rare earth metal, which indicates that intercalation through epitaxial graphene on Ru(0001) is a universal approach for metals. (C) 2011 American Institute of Physics. [doi:10.1063/1.3653241]