Interactions and magnetic moments near vacancies and resonant impurities in graphene

Abstract

The 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 non-perturbatively 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 that the coupling between the local moment and the conduction electrons is ferromagnetic.

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Cited by in corpus (10)

• The Physics of Kondo Impurities in Graphene
• Inducing Kondo Screening of Vacancy Magnetic Moments in Graphene with Gating and Local Curvature
• Magnetism and interaction-induced gap opening in graphene with vacancies or hydrogen adatoms: Quantum Monte Carlo study
• Theory of Defect-Induced Kondo Effect in Graphene: Numerical Renormalization Group Study
• Impurity-induced magnetic moments on the graphene-lattice Hubbard model: an inhomogeneous cluster DMFT study
• Spin inversion in fluorinated graphene n-p junction
• Vacancy-induced tunable Kondo effect in twisted bilayer graphene
• Defect-Induced Kondo Effect in graphene: Role of Localized State of $\pi$ Electrons
• Activation of magnetic moments in CVD-grown graphene by annealing
• Magnetic correlation effects by the topological zero mode in a hydrogenated graphene vacancy $V_{111}$