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

Dedkov, Yurij S.; Sicot, M.; Fonin, M.

doi:10.1063/1.3360340

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

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Dedkov, Yurij S.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Dedkov, Y. S., Sicot, M., & Fonin, M. (2010). X-ray absorption and magnetic circular dichroism of graphene/Ni(111). Journal of Applied Physics, 107(09): 09E121. doi:10.1063/1.3360340.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-24E7-C

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 Ni L2,3 and C K absorption edges. The XAS C 1s→π∗,σ∗ spectra show dramatic changes as the angle, α, between the electrical vector of light and normal of the sample is varied reflecting the symmetry of the final state (σ or π). 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.