Induced magnetism of carbon atoms at the graphene/Ni(111) interface
Weser, Martin and Rehder, Y. and Horn, Karsten and Muriel, Sicot and Fonin, Mikhail and Preobrajenski, Alexei B. and Voloshina, Elena and Goering, Eberhard and Dedkov, Yuriy – 2010
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 π 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 μB per atom.