Submonolayer alloying of copper on vicinal platinum: a combined atom and ion scattering study

MacLaren, D.A. , Bacon, R.T., Allison, W., O'Connor, D.J., Dastoor, P.C., Noakes, T.C.Q. and Bailey, P. (2004) Submonolayer alloying of copper on vicinal platinum: a combined atom and ion scattering study. Physical Review B, 70(12), (doi:10.1103/PhysRevB.70.125403)

MacLaren, D.A. , Bacon, R.T., Allison, W., O'Connor, D.J., Dastoor, P.C., Noakes, T.C.Q. and Bailey, P. (2004) Submonolayer alloying of copper on vicinal platinum: a combined atom and ion scattering study. Physical Review B, 70(12), (doi:10.1103/PhysRevB.70.125403)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevB.70.125403

Abstract

We present a combined helium atom scattering (HAS) and medium energy ion scattering (MEIS) study to provide a detailed description of sub-monolayer growth of copper on vicinal platinum. Initial growth is epitaxial but induces a small relaxation in the substrate. A strong temperature dependence of growth is observed and MEIS indicates the formation of a thin (two-layer) alloy between 450 K and 500 K . In-situ HAS measurements allow for the direct observation of alloying and reveal that it occurs in two unusually sharp phase transitions. Both HAS and MEIS indicate the onset of bulk alloying and dissolution of copper at surface temperatures above 600 K.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:MacLaren, Dr Donald
Authors: MacLaren, D.A., Bacon, R.T., Allison, W., O'Connor, D.J., Dastoor, P.C., Noakes, T.C.Q., and Bailey, P.
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:Physical Review B
Publisher:American Physical Society
ISSN:1098-0121
ISSN (Online):1550-235X

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