The structure formed by the deposition of a sub-monolayer quantity of platinum onto Cu(110) investigated using medium energy ion scattering

SURFACE SCIENCE

卷:605

Article

Fleming, T. P.¹  Cropper, M. D.¹  Bailey, P.²  Noakes, T. C. Q.² 

[1] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England

[2] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

关键词: Platinum Pt;    Copper Cu(110);    Medium energy ion scattering (MEIS);    Pt/Cu surface alloy;    Surface structure;    Adsorption and deposition;   

DOI  :  10.1016/j.susc.2011.05.013

来源: Elsevier

【 摘 要 】

The structure of 0.35 monolayers of platinum deposited onto Cu(110) has been investigated using medium energy ion scattering. Quantitative analysis of the data has been performed using the VEGAS routine. It was found that platinum atoms mostly occupy the second layer with a first interlayer distance of d(12) = 123 +/- 4 pm and a separation of first and third layers of d(13) =142(-10)(+4) pm. These represent a contraction of 4% and an expansion of 11% respectively from the ideal termination of the Cu(110) surface. There is clear evidence of the presence of some platinum in the third layer. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

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