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Induced magnetism of carbon atoms at the graphene/Ni(111) interface

Författare:
  • M. Weser
  • Y. Rehder
  • K. Horn
  • M. Sicot
  • M. Fonin
  • Alexei Preobrajenski
  • E. N. Voloshina
  • E. Goering
  • Yu. S. Dedkov
Publiceringsår: 2010
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Applied Physics Letters
Volym: 96
Nummer: 1
Dokumenttyp: Artikel
Förlag: American Institute of Physics

Sammanfattning

We report an element-specific investigation of electronic and magnetic properties of the graphene/Ni(111) system. Using x-ray magnetic circular dichroism, the occurrence of an induced magnetism of the carbon atoms in the graphene layer is observed. We attribute this magnetic moment to the strong hybridization between C pi and Ni 3d valence band states. The net magnetic moment of carbon in the graphene layer is estimated to be in the range of 0.05-0.1 mu(B) per atom.

Disputation

Nyckelord

  • Physics and Astronomy
  • magnetic moments
  • dichroism
  • magnetic circular
  • interface structure
  • electronic structure
  • graphene
  • nickel
  • valence bands
  • X-ray absorption
  • spectra

Övriga

Published
Yes
  • ISSN: 0003-6951

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