Kondo effect near the Van Hove singularity in biased bilayer graphene

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.

10 pages, 8 figures

References in corpus (3)

• NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism
• Low density ferromagnetism in biased bilayer graphene
• Spin polarized current and shot noise in carbon nanotube quantum dot in the Kondo regime

Cited by in corpus (2)

• Ferrimagnetic and antiferromagnetic phase in bilayer graphene nanoflake controlled with external electric fields
• Kondo effect in monolayer and bilayer graphene: physical realizations of the multi-channel Kondo models