Phys. Rev. Lett. 96, 146101 (2006) [4 pages]Revisiting the Structure of the p(4×4) Surface Oxide on Ag(111)
Scanning tunneling microscopy (STM) and density-functional theory are used to reexamine the structure of the renowned p(4×4)-O/Ag(111) surface oxide. The accepted structural model [ C. I. Carlisle et al. Phys. Rev. Lett. 84 3899 (2000)] is incompatible with the enhanced resolution of the current STM measurements. An “Ag6 model” is proposed that is more stable than its predecessor and accounts for the coexistence of the p(4×4) and a novel c(3×5√3)rect phase. This coexistence is an indication of the dynamic complexity of the system that until now has not been appreciated. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.146101
DOI:
10.1103/PhysRevLett.96.146101
PACS:
68.43.Bc, 68.37.Ef
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