Anomalous patterns and nearly defect-free ripples produced by bombarding silicon and germanium with a beam of gold ions
- Saha Institute of Nuclear Physics, Sector - I, Block - AF, Bidhan Nagar, Kolkata 700064 (India)
- Department of Mathematics, Colorado State University, Fort Collins, Colorado 80523 (United States)
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523 (United States)
We demonstrate that surface ripples with an exceptionally high degree of order can develop when germanium is bombarded with a broad beam of gold ions. In contrast, if silicon is sputtered with an Au{sup −} beam, patches of ripples with two distinct wave vectors can emerge. These types of order can be understood if the coupling between the surface morphology and composition is taken into account.
- OSTI ID:
- 22280563
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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