Do oxygen-induced Cu(410) facets reconstruct?

Vicinal surfaces of Cu close to (100) are well-known to facet to (410) in the presence of chemisorbed oxygen, presumably because this produces a lower total surface energy despite the increase in surface area. The interpretation of scanning tunneling microscope images of the Cu(410)-O surface is dis...

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Bibliographic Details
Published in:Surface science 1993-04, Vol.285 (3), p.L503-L509
Main Authors: Lloyd, G.W., Woodruff, D.P.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Metals. Metallurgy
Physics
Solid surfaces and solid-solid interfaces
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:Vicinal surfaces of Cu close to (100) are well-known to facet to (410) in the presence of chemisorbed oxygen, presumably because this produces a lower total surface energy despite the increase in surface area. The interpretation of scanning tunneling microscope images of the Cu(410)-O surface is discussed in the context of various models of this surface and previous results on the Cu(100)(√2 × 2√2)R45°-O phase. It appears that there are missing Cu atom rows in the middle of the (100) terraces of the Cu(410)-O structure. The favoured model for this structure optimises the opportunity for the formation of linear CuOCuO chains as found on the oxygen-reconstructed Cu(110) surface.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(93)90421-F