Observation of a Soliton Reconstruction of Au(111) by High-Resolution Helium-Atom Diffraction
- 17 June 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 54 (24), 2619-2622
- https://doi.org/10.1103/PhysRevLett.54.2619
Abstract
From an analysis of diffraction data for Au(111), we deduce that the observed 23-fold periodicity in the direction can be described by a regular superstructure of one-dimensional extended stacking faults. We propose that this surface is a realization of the Frenkel-Kontorova model of competing interactions and that the periodic changes in stacking from to may thus take the form of solitons. The solitons, of half-width 11.8 Å, lead to an average compression of 4% in the direction.
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