Magnetism of cobalt nanoclusters on graphene on iridium

Abstract

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.

References in corpus (2)

• Crystallographic Etching of Few-Layer Graphene
• Friedel oscillations, impurity scattering and temperature dependence of resistivity in graphene

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