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Start Over Author "Drnec J" Journal applied surface science
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4. Co film stretching induced by lattice mismatch and annealing: The role of Graphene

Author

Roberto Felici, Ilaria Carlomagno, Francesco Carlà, Sergio Vlaic, Jakub Drnec, N. Vinogadrov, Carlo Meneghini, H. Isern, Carlomagno, I., Drnec, J., Vlaic, S., Vinogadrov, N., Carlà, F., Isern, H., Meneghini, C., and Felici, R.

Subjects
Solid-state chemistry, Materials science, Annealing (metallurgy), Intercalation (chemistry), General Physics and Astronomy, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, 01 natural sciences, law.invention, law, 0103 physical sciences, Intercalation, Thin film, 010302 applied physics, Spintronics, Graphene, Surfaces and Interfaces, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Surfaces, Coatings and Films, chemistry, Chemical physics, 0210 nano-technology, Cobalt, Graphene nanoribbons
Abstract

Thin Co films intercalated between a Graphene capping layer and the Ir(111) surface are of interest for spintronics applications due to their peculiar magnetic properties and to their chemical stability. The structure, and then the magnetic properties, of the Co films depend on the intercalation process which is strongly influenced by the temperature, total amount of Cobalt and quality of the capping Graphene layer. In order to identify and disentangle the effects of these contributions, we report on the structural characterisation of four Co films as a function of thickness, annealing temperature, and Graphene capping. From the structural point of view, the deposition of Co on a hot Ir substrate mimics quite well the intercalation process proving the validity of the colander model describing the Graphene role during the process.

Published
2018

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