• 文献标题:   Kondo effect near the van hove singularity in biased bilayer graphene
  • 文献类型:   Article
  • 作  者:   LIPINSKI S, KRYCHOWSKI D
  • 作者关键词:   electronic structure, graphene bilayer, kondo effect, valence fluctuation
  • 出版物名称:   JOURNAL OF THE KOREAN PHYSICAL SOCIETY
  • ISSN:   0374-4884 EI 1976-8524
  • 通讯作者地址:   Polish Acad Sci
  • 被引频次:   2
  • DOI:   10.3938/jkps.62.1440
  • 出版年:   2013

▎ 摘  要

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.