Local correlation during Ostwald ripening of two-dimensional islands on Ag(111)
Using two-dimensional Ag adatom islands on Ag(111) as a model system, we study the importance of local correlations in diffusion-limited Ostwald ripening. For the coverages studied (0.08, 0.21, and 0.3ML), we find that the ripening can be surprisingly well described in a nearest neighbour model base...
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| Veröffentlicht in: | Surface science 1999-11, Vol.441 (2-3), p.289-300 |
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| container_title | Surface science |
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| creator | Morgenstern, Karina Rosenfeld, Georg Comsa, George |
| description | Using two-dimensional Ag adatom islands on Ag(111) as a model system, we study the importance of local correlations in diffusion-limited Ostwald ripening. For the coverages studied (0.08, 0.21, and 0.3ML), we find that the ripening can be surprisingly well described in a nearest neighbour model based on pairwise atom exchange between neighbouring islands. The results reveal the local nature of diffusion-limited Ostwald ripening and demonstrate the limits of the mean-field theories in describing experimental data. |
| doi_str_mv | 10.1016/S0039-6028(99)00775-X |
| format | Article |
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| language | eng |
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| subjects | Applied sciences Condensed matter: structure, mechanical and thermal properties Diffusion interface formation Exact sciences and technology Metals. Metallurgy Physics Scanning tunneling microscopy Silver Solid surfaces and solid-solid interfaces Surface diffusion Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) |
| title | Local correlation during Ostwald ripening of two-dimensional islands on Ag(111) |
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