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

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MacLaren, D., Bacon, R., Allison, W., O’Connor, D., Dastoor, P., Noakes, T. and Bailey, Paul (2004) Submonolayer alloying of copper on vicinal platinum: A combined atom and ion scattering study. Physical Review B, 70 (12). p. 125403. ISSN 1098-0121

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Official URL: http://dx.doi.org/10.1103/physrevb.70.125403

DOI: 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:	Article
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Schools:	School of Applied Sciences
Related URLs:	Author
Depositing User:	Sharon Beastall
Date Deposited:	12 Sep 2012 08:32
Last Modified:	12 Sep 2012 08:32
URI:	http://eprints.hud.ac.uk/id/eprint/14832

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