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

• 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.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

magnetic moments

dichroism

magnetic circular

interface structure

electronic structure

graphene

nickel

valence bands

X-ray absorption

spectra

Publikations- och innehållstyp

art (ämneskategori)

ref (ämneskategori)