Abstract
We have studied the morphological evolution of Ni(1 1 0) surface induced by low-energy ion sputtering at room temperature with scanning tunneling microscopy. We found that there are two different time regimes in the sputtering processes. In the first regime, a ripple structure is formed with the wave vector along the direction [1 1̄ 0] due to the strong diffusion bias along the direction and the surface roughness increases fast with time. However, in the second regime, three-dimensional mounds are formed with absent anisotropy and the logarithmic surface roughness becomes saturated.
| Original language | English |
|---|---|
| Pages (from-to) | 76-79 |
| Number of pages | 4 |
| Journal | Applied Surface Science |
| Volume | 183 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2001 Nov 12 |
| Externally published | Yes |
Bibliographical note
Funding Information:We acknowledge the financial support by the Ministry of Science and Technology of Korea through the National Creative Research Initiatives.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
Keywords
- Ion sputtering
- Scanning tunneling microscopy
- Sputter-erosion
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- General Physics and Astronomy
- Surfaces and Interfaces
- Surfaces, Coatings and Films