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

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Abstract

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.

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Subject classification (UKÄ) – MANDATORY

  • Natural Sciences
  • Physical Sciences

Keywords

  • magnetic moments, dichroism, magnetic circular, interface structure, electronic structure, graphene, nickel, valence bands, X-ray absorption, spectra
Original languageEnglish
Article number012504
JournalApplied Physics Letters
Volume96
Issue number1
Publication statusPublished - 2010
Publication categoryResearch
Peer-reviewedYes