Magnetism of cobalt nanoclusters on graphene on iridium

Chi Vo-Van; Stefan Schumacher; Johann Coraux; Violetta Sessi; Olivier Fruchart; Nick B. Brookes; Philippe Ohresser; Thomas Michely

doi:10.1063/1.3646480

Magnetism of cobalt nanoclusters on graphene on iridium

Materials Science 2015-05-28 v1

Authors: Chi Vo-Van , Stefan Schumacher , Johann Coraux , Violetta Sessi , Olivier Fruchart , Nick B. Brookes , Philippe Ohresser , Thomas Michely

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Abstract

The structure and magnetic properties of Co clusters, comprising from 26 to 2700 atoms, self-organized or not on the graphene/Ir(111) moir\'e, 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.

Keywords

cobalt nanoclusters graphene magnetism magnetic anisotropy magnetic coupling scanning tunneling microscopy X-ray magnetic circular dichroism

Cite

@article{arxiv.1107.2571,
  title  = {Magnetism of cobalt nanoclusters on graphene on iridium},
  author = {Chi Vo-Van and Stefan Schumacher and Johann Coraux and Violetta Sessi and Olivier Fruchart and Nick B. Brookes and Philippe Ohresser and Thomas Michely},
  journal= {arXiv preprint arXiv:1107.2571},
  year   = {2015}
}

Magnetism of cobalt nanoclusters on graphene on iridium

Abstract

Keywords

Cite

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