Structural analysis of the Ru(0001)(1 x 1)-O and Ru(0001)(2 x 1)-O structures by medium energy in scattering
UNSPECIFIED (2001) Structural analysis of the Ru(0001)(1 x 1)-O and Ru(0001)(2 x 1)-O structures by medium energy in scattering. Surface Science, 491 (1-2). pp. 208-218. ISSN 0039-6028Full text not available from this repository.
Medium energy ion scattering using 100 keV H+ ions, has been used to investigate the structure of the (2 x 1) and (1 x 1) chemisorbed phases of atomic oxygen on Ru(0 0 0 1), aided by a new automated structural search routine. In both phases the O is found to occupy hep hollow sites directly above second layer Ru atoms, while in the (1 x 1)-O surface the oxygen chemisorption induces an expansion of the outermost Ru layer spacing. More subtle subsurface structural modifications, and near-surface lateral and rumpling distortions of the Ru surface in the (2 x 1) phase were also investigated, but the amplitude of these distortions are not formally significant relative to the estimated precision. A 1.6 ML O coverage (1 x 1) surface phase showed clear evidence for subsurface oxygen and small changes in Ru subsurface layer spacings. (C) 2001 Elsevier Science B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry
Q Science > QC Physics
|Journal or Publication Title:||Surface Science|
|Publisher:||ELSEVIER SCIENCE BV|
|Date:||20 September 2001|
|Number of Pages:||11|
|Page Range:||pp. 208-218|
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