Nucleation and growth of aluminum on an inert substrate of graphite
文献类型：期刊论文
| 作者 | Xiao, WD ; Kushvaha, SS ; Wang, XS |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2008 |
| 卷号 | 20期号:22 |
| 关键词 | SCANNING-TUNNELING-MICROSCOPY ORIENTED PYROLYTIC-GRAPHITE SELF-DIFFUSION SMALL CLUSTERS AU PARTICLES 0001 SURFACE AL CLUSTERS THIN-FILMS NANOSTRUCTURES NANOCLUSTERS |
| ISSN号 | 0953-8984 |
| 通讯作者 | Xiao, WD (reprint author), Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore. |
| 中文摘要 | We have investigated the nucleation, growth and structure of Al on an inert graphite surface at room temperature (RT) using in situ scanning tunneling microscopy. It was observed that Al initially nucleates at step edges and defect sites of graphite surfaces, due to the inertness of the substrate and weak interfacial interaction. From a diffusion and capture model, the mean adatom diffusion length before desorption was derived to be 170 +/- 80 nm, correspondingly giving a lower bound of the adatom-substrate binding energy of 0.39 +/- 0.03 eV. With successive Al deposition of similar to 0.5 nm, the growth and coarsening of small clusters results in flat-top crystalline islands with (111)-oriented facets located at step edges as well as on defect-free terraces. The crystalline islands have essential translational and rotational mobility, which leads to the formation of craters on islands after Al deposition of similar to 6 nm. A simple island-coalescence model based on fast edge diffusion and suppressed detachment from step edges was proposed for rationalizing the crater formation. It was also observed that isolated islands of Al can be stabilized by two-dimensional structures of Sb surrounding Al islands after Sb deposition at RT. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50060]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xiao, WD,Kushvaha, SS,Wang, XS. Nucleation and growth of aluminum on an inert substrate of graphite[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2008,20(22). |
| APA | Xiao, WD,Kushvaha, SS,&Wang, XS.(2008).Nucleation and growth of aluminum on an inert substrate of graphite.JOURNAL OF PHYSICS-CONDENSED MATTER,20(22). |
| MLA | Xiao, WD,et al."Nucleation and growth of aluminum on an inert substrate of graphite".JOURNAL OF PHYSICS-CONDENSED MATTER 20.22(2008). |
入库方式： OAI收割
来源：物理研究所
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