Structure and phases of the Au(001) surface: X-ray scattering measurements
- 11 June 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 64 (24) , 2925-2928
- https://doi.org/10.1103/physrevlett.64.2925
Abstract
X-ray diffraction is used to study the phase behavior and structure of the Au(001) surface between 300 K and the triple point. For T>1170 K, the x-ray reflectivity is consistent with a thin, disordered surface film. At 1170 K, there is a reversible transition to an incommensurate, hexagonal overlayer on top of the square substrate. At 970 K, the orientation of the hexagonal layer rotates discontinuously by 0.81° with no observable change in incommensurability.Keywords
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