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Article Dans Une Revue Applied Physics Letters Année : 2011

Magnetism of cobalt nanoclusters on graphene on iridium

Résumé

The structure and magnetic properties of Co clusters, comprising from 26 to 2700 atoms, self-organized or not on the graphene/Ir(111) moiré, were studied in situ with the help of scanning tunneling microscopy and X-ray magnetic circular dichroism. Surprisingly the small clusters have almost no magnetic anisotropy. We find indication for a magnetic coupling between the clusters. Experiments have to be performed carefully so as to avoid cluster damage by the soft X-rays.
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Dates et versions

hal-00607749 , version 1 (11-07-2011)

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Chi Vo-Van, Stefan Schumacher, Johann Coraux, Violetta Sessi, Olivier Fruchart, et al.. Magnetism of cobalt nanoclusters on graphene on iridium. Applied Physics Letters, 2011, 99 (14), pp.142504. ⟨10.1063/1.3646480⟩. ⟨hal-00607749⟩
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