| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5426263 | Surface Science | 2006 | 7 Pages |
Abstract
We have demonstrated that nickel adatoms self-assemble into quasi one-dimensional nanowires on vicinal Rh(1Â 1Â 1) surfaces by decorating their regular monoatomic step arrays, while V adatoms do not. The step decoration process has been followed experimentally by variable-temperature scanning tunnelling microscopy and high-resolution X-ray photoelectron spectroscopy. The physical origin of the different step-assisted self-assembly behaviour of Ni and V adatoms has been elucidated theoretically and is ascribed to different diffusion barriers and trapping capability of Ni and V at Rh steps.
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Authors
J. Schoiswohl, F. Mittendorfer, S. Surnev, M.G. Ramsey, J.N. Andersen, F.P. Netzer,