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Doping and oxidation effects at ambient conditions in copper surfaces: A “real-life” CuBe surface

Abstract

Cu-based materials are used in a variety of industrial applications, from mechanics to electronics, thus, it is important to know the mechanisms occurring at their surface in ambient. We investigate the CuBe surface by using a combination of soft X-ray spectroscopies, atomic force microscopy and first-principles calculations. We find that this surface behaves upon oxidation under ambient conditions very similarly to a pure copper surface: The oxidation process at ambient conditions leads to the formation of native Cu2O, while beryllium does not affect the electronic properties of the substrate. We have also investigated the role of mild annealing in ultra high vacuum: After annealing the CuBe surface shows the typical features of a metallic copper surface, with segregation of beryllium at the surface and its on-site oxidization. Our work elucidates the mechanisms leading to the real-life properties of this surface, accounting for its high performance in industrial applications.

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Publication details

The article was received on 01 Nov 2017, accepted on 05 Feb 2018 and first published on 05 Feb 2018


Article type: Paper
DOI: 10.1039/C7TC04983H
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Doping and oxidation effects at ambient conditions in copper surfaces: A “real-life” CuBe surface

    M. Glaser, F. Ciccullo, E. Giangrisostomi, R. Ovsyannikov, A. Calzolari and M. B. Casu, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C7TC04983H

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