Growth and alloying of submonolayer Cu on Pt(12 12 11)

O'Connor, D.J., MacLaren, D.A. , Noakes, T.C.Q., Bailey, P., Allison, W. and Dastoor, P.C. (2004) Growth and alloying of submonolayer Cu on Pt(12 12 11). Vacuum, 73(1), pp. 115-121. (doi: 10.1016/j.vacuum.2003.12.028)

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A detailed comparative study of Cu growth on the vicinal surface Pt(12 12 11) has been performed with helium atom scattering (HAS) and medium energy ion scattering (MEIS). These techniques are ideally complementary in that HAS is extremely sensitive to the electronic structure of the surface layer, while MEIS accurately probes the atom core structure of the surface. By combining these two techniques it has been possible to measure the initial structure of Cu on the stepped Pt surface and to study how the Cu redistributes across the surface and into the bulk on annealing. The HAS and MEIS data identify two significant diffusion transitions on the surface occurring at temperatures of 450 and 600 K.

Item Type:Articles
Keywords:Epitaxial growth; Surface alloy; Pt(1 1 1); Surface relaxation
Glasgow Author(s) Enlighten ID:MacLaren, Dr Donald
Authors: O'Connor, D.J., MacLaren, D.A., Noakes, T.C.Q., Bailey, P., Allison, W., and Dastoor, P.C.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
University Centres > Glasgow Materials Research Initiative
Journal Name:Vacuum
ISSN (Online):1879-2715
Published Online:25 January 2004

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