Epitaxial Growth of Metastable Co-Cu Alloys by a Surface Pump Mechanism
- 25 November 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (22) , 4580-4583
- https://doi.org/10.1103/physrevlett.77.4580
Abstract
We report the operation for Co-Cu alloys of a surface pump mechanism whereby bulk metastable alloys are formed during epitaxial growth. This happens when a material with a larger surface energy (Co) is grown on a film with a lesser surface energy (Cu). The specific pathway transports Cu through pinholes by surface diffusion at temperatures which are too low for the metastable alloy to decompose by bulk diffusion.Keywords
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