Self-assembled metallic dots and antidots: Epitaxial Co on Ru(0001)
We have grown {approx}1--420 nm thick epitaxial Co wedges on Ru(0001) with molecular-beam epitaxy at 350{sup o}C and characterized them with atomic force microscopy. A metal-on-metal growth mode was observed where three-dimensional islands (dots) or a flat film network with holes (antidots) in truncated pyramidal shapes exist below or above {approx} 20 nm, respectively. The top of the islands and the rim of the holes are flat with a roughness of {approx}0.3 nm, and the lateral sizes of these dots/antidots, {approx}10{sup 2} nm, tend to be uniform. We suggest that this self-assembled growth be mainly driven by strain.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205284
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 9 Vol. 78; ISSN 0003-6951
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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