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Citation: Tang Xiao-Ming, Wei Sai-Zhen, Mao Zu-Sui, Li Hai-Yang, Chen Xiao-Feng, Zheng Yong-Ming. Fractal Characteristics of Film Surface[J]. Acta Physico-Chimica Sinica, ;1999, 15(05): 403-406. doi: 10.3866/PKU.WHXB19990504 shu

Fractal Characteristics of Film Surface

1.
Physics Department,Zhejiang University,Hangzhou 310027

Received Date: 5 August 1998
Available Online: 15 May 1999

A fractal surface was generated on computer by random addition method. The simulated measurement on this surface shows that z resolution has little effect on calculating fractal dimension D while the lower x y resolution causes larger statistic error. D was calculated for Au films on three kind of substfate using data from Scanning Tunneling Microscope(STM) images. D = 2. 15 for Au/ceramic, and D = 2. 06 for Au/optical glass. D has different values for different points on Au/general glass, the reason of mismatch between curves from STM images of different scan sizes was also discussed.
- Fractal dimension,
- Film surface,
- STM,
- Computer simultion,
- Resolution
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