NARASIMHAN, SHOBHANA ; PUSHPA, RAGHANI (2011) Honeycombs, Triangles And Bright Stars: The Adatom-induced Reconstruction of PT(111) In: Proceedings of the International Conference, 4-8 March 2002, Puri, India.
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Official URL: http://doi.org/10.1142/9789812704221_0001
Related URL: http://dx.doi.org/10.1142/9789812704221_0001
Abstract
We have studied the reconstruction of Pt(111) theoretically, using a two-dimensional Frenkel-Kontorova model whose parameters have been determined from ab initio calculations. In agreement with experiment, we find that the surface does not reconstruct under normal conditions. However, if the chemical potential is lowered, e.g., by the presence of adatoms, the surface reconstructs into a pattern of FCC and HCP domains, whose size and geometry is very sensitive to the parameters. As the surface layer densifies, the pattern of domains evolves smoothly from honeycombs to triangles to bright stars to a Moiré pattern.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Source: | Copyright of this article belongs to World Scientific Publishing Co Pte Ltd. |
| ID Code: | 123259 |
| Deposited On: | 09 Sep 2021 09:56 |
| Last Modified: | 09 Sep 2021 09:56 |
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