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Kondo effect near the van hove singularity in biased bilayer graphene

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Abstract

Magnetic impurity adsorbed on one of the carbon planes of a bilayer graphene is studied. The formation of the many-body SU(2) and SU(4) resonances close to the bandgap is analyzed within the mean field Kotliar-Ruckenstein slave boson approach. Impact of enhanced hybridization and magnetic instability of bilayer doped near the van Hove singularity on the screening of magnetic moment is discussed.

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Authors and Affiliations

  1. Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179, Poznań, Poland

    Stanisław Lipiński & Damian Krychowski

Authors
  1. Stanisław Lipiński
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  2. Damian Krychowski
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Correspondence to Stanisław Lipiński.

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Lipiński, S., Krychowski, D. Kondo effect near the van hove singularity in biased bilayer graphene. Journal of the Korean Physical Society 62, 1440–1444 (2013). https://doi.org/10.3938/jkps.62.1440

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  • DOI: https://doi.org/10.3938/jkps.62.1440

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