X-ray absorption and magnetic circular dichroism of graphene/Ni(111)

Abstract

We present systematic investigations of the electronic and magnetic properties of the graphene/Ni(111) system by means of x-ray absorption spectroscopy (XAS) and magnetic circular dichroism (XMCD) at the [formula omitted] and [formula omitted] absorption edges. The XAS [formula omitted] spectra show dramatic changes as the angle, [formula omitted], between the electrical vector of light and normal of the sample is varied reflecting the symmetry of the final state ([formula omitted] or [formula omitted]). XMCD spectra reveal an induced magnetic moment of the carbon atoms in the graphene layer. Our experimental results are discussed in the light of previous results on the observation of induced magnetism in nonmagnetic materials. © 2010, American Institute of Physics. All rights reserved.