| Autor: |
Jack, Kelsall, Peter S M, Townsend, John, Ellis, Andrew P, Jardine, Nadav, Avidor |
| Rok vydání: |
2020 |
| Zdroj: |
Physical review letters. 126(15) |
| ISSN: |
1079-7114 |
| Popis: |
Nanoscopic clustering in a 2D disordered phase is observed for oxygen on Ru(0001) at low coverages and high temperatures. We study the coexistence of quasistatic clusters (with a characteristic length of ∼9 Å) and highly mobile atomic oxygen which diffuses between the energy-inequivalent, threefold hollow sites of the substrate. We determine a surprisingly low activation energy for diffusion of 385±20 meV. The minimum of the O-O interadsorbate potential appears to be at lower separations than previously reported. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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