Haase, P.P.HaaseFuchs, SebastianSebastianFuchsPruschke, T.T.PruschkeOchoa, H.H.OchoaGuinea, F.F.Guinea2018-11-072018-11-072011https://resolver.sub.uni-goettingen.de/purl?gro-2/22791The effect of electronic interactions in graphene with vacancies or resonant scatterers is investigated. We apply dynamical mean-field theory in combination with quantum Monte Carlo simulations, which allow us to treat nonperturbatively quantum fluctuations beyond Hartree-Fock approximations. The interactions narrow the width of the resonance and induce a Curie magnetic susceptibility, signaling the formation of local moments. The absence of saturation of the susceptibility at low temperatures suggests a ferromagnetic Kondo effect.journal_article10.1103/PhysRevB.83.241408000292128800003