Spin-spin correlations of magnetic impurities in graphene

Abstract

We study the interaction between two magnetic adatom impurities in graphene using the Anderson model. The two-impurity Anderson Hamiltonian is solved numerically by using the quantum Monte Carlo technique. We find that the inter-impurity spin susceptibility is strongly enhanced at low temperatures, significantly diverging from the well-known Ruderman-Kittel-Kasuya-Yoshida (RKKY) result which decays as $R^{-3}$.

arXiv comment4 pages, 4 figures

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Cited by in corpus (3)

• Effects of random atomic disorder on the magnetic stability of graphene nanoribbons with zigzag edges
• Defect induced Anderson localization and magnetization in graphene quantum dots
• Electronic and magnetic properties of graphene quantum dots with two charged vacancies