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Compositional and structural medium energy ion scattering study of the temperature mediated diffusion determination at the Co/V interface in Co/V/MgO(100)

Díaz, M.; Martínez, L.; Román, E.; Redondo-Cubero, A.; Muñoz-Márquez, M.A.; van der Laan, G.; Telling, N.D.; Bailey, P.; Noakes, T.C.Q.; Huttel, Y.

Authors

M. Díaz

L. Martínez

E. Román

A. Redondo-Cubero

M.A. Muñoz-Márquez

G. van der Laan

P. Bailey

T.C.Q. Noakes

Y. Huttel



Abstract

The impact of annealing at 300 °C on the elemental composition and the atomic structure of the Co/V interface in the 2.5 Å Co/70 Å V/MgO (100) system has been investigated by medium energy ion scattering (MEIS) using 100 keV He+ ions. By combining the experimental MEIS results with simulations we show that, while the Co/V interface is abrupt for the system kept at room temperature, annealing at 300 °C induces a strong interdiffusion leading to a Co0.5V0.5 surface bcc alloy with a high degree of disorder. Additionally, the MEIS data suggest that the surface of the annealed system is slightly rumpled by ~ 0.2 Å.

Citation

Díaz, M., Martínez, L., Román, E., Redondo-Cubero, A., Muñoz-Márquez, M., van der Laan, G., …Huttel, Y. (2010). Compositional and structural medium energy ion scattering study of the temperature mediated diffusion determination at the Co/V interface in Co/V/MgO(100). Surface Science, 604(23-24), 2177-2183. https://doi.org/10.1016/j.susc.2010.09.011

Journal Article Type Article
Acceptance Date Sep 15, 2010
Online Publication Date Sep 22, 2010
Publication Date 2010-11
Deposit Date May 22, 2024
Journal Surface Science
Print ISSN 0039-6028
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 604
Issue 23-24
Pages 2177-2183
DOI https://doi.org/10.1016/j.susc.2010.09.011
Keywords Medium energy ion scattering (MEIS); Interdiffusion; Interface; Composition; Layer; Structure; Disorder
Public URL https://keele-repository.worktribe.com/output/831263