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Reply to Comment on "Quantum phase transition in the four-spin exchange antiferromagnet"
Valeri N. Kotov, D. X. Yao, A. H. Castro Neto +1
We argue that our analysis of the J-Q model, presented in Phys. Rev. B 80, 174403 (2009), and based on a field-theory description of coupled dimers, captures properly the strong qu…
Kondo Quantum Criticality of Magnetic Adatoms in Graphene
Bruno Uchoa, T. G. Rappoport, A. H. Castro Neto
We examine the exchange Hamiltonian for magnetic adatoms in graphene with localized inner shell states. On symmetry grounds, we predict the existence of a class of orbitals that le…
Electron-Electron Interactions in the Vacuum Polarization of Graphene
Valeri N. Kotov, Bruno Uchoa, A. H. Castro Neto
We discuss the effect of electron-electron interactions on the static polarization properties of graphene beyond RPA. Divergent self-energy corrections are naturally absorbed into…