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FRACTAL GROWTH OF 2-DIMENSIONAL ISLANDS - AU ON RU(0001)

被引：380
作者：
HWANG, RQ
SCHRODER, J
GUNTHER, C
BEHM, RJ
机构：
[1] Institut fur Kristallographie und Mineralogie, Universität M̈nchen, W-8000 M̈nchen 2
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.67.3279
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The two-dimensional growth of Au on Ru(0001) in the submonolayer range has been investigated with scanning tunneling microscopy. Upon deposition at room temperature, highly dendritic islands of one layer thickness grow on large Ru terraces. These irregular island shapes are removed upon annealing to 650 K. The dendritic islands exhibit a fractal character, and a dimensional analysis yields a fractal dimension of 1.72 +/- 0.07. The results are in quantitative agreement with a two-dimensional diffusion-limited-aggregation growth mechanism.
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页码：3279 / 3282
页数：4
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