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Time evolution of adatom and vacancy clusters on Ag(110) |
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| Authors: | S. Rusponi C. Boragno R. Ferrando F. Hontinfinde U. Valbusa |
| Affiliation: | INFM, Unitá di Genova and CFSBT-CNR, Dipartimento di Fisica Universitá di Genova, via Dodencaneso 33, I-16146 Genoa, Italy |
| Abstract: | The time evolution of adatom and vacancy islands on an Ag(110) surface is studied by using a variable-temperature ultrahigh vacuum scanning tunneling microscope. The islands are created by Ar+ ion sputtering at low temperatures and at very low fluxes (0.004 ML s−1). The area of both kinds of island decreases linearly as a function of time, at least for small islands. The experimental results are compared with kinetic Monte Carlo simulations. |
| Keywords: | Ag(110) Monte Carlo simulations Scanning tunneling microscopy Surface diffusion |
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