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

Autor:	M. Díaz, Neil D. Telling, E. Román, Paul Bailey, Lidia Martínez, M.A. Muñoz-Márquez, Yves Huttel, Andrés Redondo-Cubero, Tcq Noakes, G. van der Laan
Rok vydání:	2010
Předmět:	Elemental composition Diffusion transport Annealing (metallurgy) Scattering Chemistry Magnesium Alloy Analytical chemistry chemistry.chemical_element Surfaces and Interfaces engineering.material Condensed Matter Physics Surfaces Coatings and Films Ion Medium energy Materials Chemistry engineering
Zdroj:	Surface Science. 604:2177-2183
ISSN:	0039-6028
DOI:	10.1016/j.susc.2010.09.011
Popis:	The impact of annealing at 300 °C on the elemental composition and the atomic structure of the Co/V interface in the 2.5 A Co/70 A 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 A.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::732222e4c4b6c3f20dbaafa909632038 https://doi.org/10.1016/j.susc.2010.09.011 Zobrazit plný text záznamu Full Text from ScienceDirect