Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5424459 | Surface Science | 2009 | 7 Pages |
Abstract
We report and model calculations of nanostripes formation of the Cu(3Â 3Â 2) surface obtained by oxygen-induced reconstruction. Scanning tunnelling microscope (STM) results with atomic resolution reveal alternate facets of clean Cu(1Â 1Â 1) and Cu(1Â 1Â 0)-O(2Ã1) along the [â1Â 1Â 0] direction, with the same average direction of Cu(3Â 3Â 2). At the edge between the two facets, oxygen is absorbed in a pseudo threefold site of the unreconstructed Cu(3Â 3Â 2). Tuneable periodicity, from 3 to 10Â nm, is obtained by controlled change of the surface treatment. We discuss the formation of the periodic nanostructures and the mechanism driving the reconstruction via model calculations.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
C.E. ViolBarbosa, J. Fujii, G. Panaccione, G. Rossi,