Current-induced one-dimensional diffusion of Co ad-atoms on graphene nanoribbons
Tobias Preis,
Sasha Vrbica,
Jonathan Eroms
et al.
Abstract:One-dimensional diffusion of Co ad-atoms on graphene nanoribbons has been induced and investigated by means of scanning tunnelling microscopy (STM). To this end, the nanoribbons and the Co ad-atoms have been imaged before and after injecting current pulses into the nanoribbons, with the STM tip in direct contact with the ribbon. We observe currentinduced motion of the Co atoms along the nanoribbons, which is approximately described by a distribution expected for a thermally activated one-dimensional random wal… Show more
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