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Layer-resolved elemental-composition determination at the Co/V interface in Co/V/MgO(100)

Díaz, M., Román, E., Laan, G. van der, Bailey, Paul, Noakes, T.C.Q., Martin, A. Muñoz and Huttel, Y. (2008) Layer-resolved elemental-composition determination at the Co/V interface in Co/V/MgO(100). Surface Science, 602 (24). L139-L144. ISSN 0039-6028

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Medium energy ion scattering has been used to investigate the possible interdiffusion of Co and V at the Co/V interface in the Co/V/MgO(1 0 0) system at room temperature and after annealing in the temperature range from 100 to 500 °C. The Co and V composition and structure as a function of depth has been studied using two-dimensional maps of the scattered ion energy versus scattering angle and with the corresponding projections onto the angle axis over a small energy range (angle spectrum) and onto the energy axis over a small scattering angle range (energy spectrum). At room temperature only limited interdiffusion at the Co/V interface can be inferred from the analysis of the experimental data, while at 300 °C and higher drastic changes are observed at the Co/V interface in terms of sharpness and composition. Furthermore, a structural change is observed after annealing at 500 °C as a consequence of the V and/or Co interdiffusion.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 10 Jan 2012 11:08
Last Modified: 28 Aug 2021 11:13


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