Thermal roughness of a close-packed metal surface: Pt(001)

D. L. Abernathy; S. G.J. Mochrie; D. M. Zehner; G. Grübel; Doon Gibbs

doi:10.1103/PhysRevLett.69.941

Thermal roughness of a close-packed metal surface: Pt(001)

D. L. Abernathy, S. G.J. Mochrie, D. M. Zehner, G. Grübel, Doon Gibbs

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33 Scopus citations

Abstract

An x-ray scattering study of the morphology of the Pt(001) surface reveals that below 1820 K it is atomically smooth on length scales exceeding 5000. However, above 1820 K the Pt(001) surface is rough. Specifically, the scattering near the specular condition is diffuse, and may be modeled using a height-height correlation function which diverges logarithmically at large distances. Our data suggest that the average separation between thermally generated steps is many lattice constants.

Original language	English
Pages (from-to)	941-944
Number of pages	4
Journal	Physical Review Letters
Volume	69
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.69.941
State	Published - 1992
Externally published	Yes

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10.1103/PhysRevLett.69.941

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abstract = "An x-ray scattering study of the morphology of the Pt(001) surface reveals that below 1820 K it is atomically smooth on length scales exceeding 5000. However, above 1820 K the Pt(001) surface is rough. Specifically, the scattering near the specular condition is diffuse, and may be modeled using a height-height correlation function which diverges logarithmically at large distances. Our data suggest that the average separation between thermally generated steps is many lattice constants.",

author = "Abernathy, {D. L.} and Mochrie, {S. G.J.} and Zehner, {D. M.} and G. Gr{\"u}bel and Doon Gibbs",

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AU - Zehner, D. M.

AU - Grübel, G.

AU - Gibbs, Doon

PY - 1992

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AB - An x-ray scattering study of the morphology of the Pt(001) surface reveals that below 1820 K it is atomically smooth on length scales exceeding 5000. However, above 1820 K the Pt(001) surface is rough. Specifically, the scattering near the specular condition is diffuse, and may be modeled using a height-height correlation function which diverges logarithmically at large distances. Our data suggest that the average separation between thermally generated steps is many lattice constants.

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Thermal roughness of a close-packed metal surface: Pt(001)

Abstract

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