Fabrication of 1D metal nanostructures on a vicinal Au(111) surface
Fabrication of 1D metal nanostructures on a vicinal Au(111) surface
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在邻位 Au(111) 表面上制造一维金属纳米结构
DOI：
10.1380/ejssnt.2003.142
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Kawai
中科院分区：
文献类型：
--
作者：
S. Shiraki;H. Fujisawa;M. Nantoh;M. Kawai
用扫描隧道显微镜观察了Mn和Gd在邻位Au（111）表面的生长。用Mn原子制备了一维纳米结构。掺杂的Mn原子吸附在{111}台阶的下角，Mn吸附层在（111）台阶上以阶梯流动的方式生长。另一方面，Gd没有形成一维结构的趋势。Gd原子不仅在台阶的下角成核，而且在台阶上也成核。随着覆盖度的增加，Gd岛的尺寸在阶地上的成核位点周围各向同性地生长。定性地讨论了这些不同生长方式的机制。[DOI：10.1380/ejssnt.2003.142]
The growth of Mn and Gd on a vicinal Au(111) surface is observed by scanning tunneling microscopy at room temperature. One-dimensional nanostructures have been fabricated with Mn adatoms. Dosed Mn atoms are adsorbed at lower corners of {111} steps, and Mn adlayers grow in a step-flow growth mode on (111) terraces. On the other hand, there is no tendency for Gd to form one-dimensional structures. Dosed Gd atoms nucleate not only at lower corners of the steps but also on the terraces. As the coverage is increased, Gd adislands isotropically grow in size around the nucleation sites on the terraces. The mechanism of these different growth manners is qualitatively discussed. [DOI: 10.1380/ejssnt.2003.142]