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Journal Article

Revisiting the structure of the p(4 x 4) surface oxide on Ag(111)

MPS-Authors
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Michaelides,  Angelos
Theory, Fritz Haber Institute, Max Planck Society;

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Reuter,  Karsten
Theory, Fritz Haber Institute, Max Planck Society;

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Scheffler,  Matthias
Theory, Fritz Haber Institute, Max Planck Society;

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PRL-96-146101-2006.pdf
(Publisher version), 2MB

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Citation

Schnadt, J., Michaelides, A., Knudsen, J., Vang, R. T., Reuter, K., Lægsgaard, E., et al. (2006). Revisiting the structure of the p(4 x 4) surface oxide on Ag(111). Physical Review Letters, 96(14): 146101. doi:10.1103/PhysRevLett.96.146101.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-04DC-A
Abstract
Scanning tunneling microscopy (STM) and density-functional theory are used to reexamine the structure of the renowned p(4 x 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 x 4) and a novel c(3 x 5√3)rect phase. This coexistence is an indication of the dynamic complexity of the system that until now has not been appreciated.