Landau levelsmagnetoelectronicstight-binding calculations/ Landau levelshexagonal bilayer graphenePeierls tight-binding modelinterlayer atomic hoppingsA new approach, which makes the Hamiltonian of the Peierls tight-binding model change into a band matrix, is used to investigate the Landau levels in a AA...
Landau level spectrum of bilayer Bernal graphene is investigated by using the Peierls Hamiltonian band matrix developed from the tight-binding model. A magnetic field leads a bilayer system to exhibit many dispersionless Landau levels(LLs) at low and high energies and some oscillatory LLs at ...
We perform infrared magnetospectroscopy of Landau level (LL) transitions in dual-gated bilayer graphene. At when the zeroth LL (octet) is filled, two resonances are observed indicating the opening of a gap. At when the octet is half-filled, multiple resonances disperse nonmonotonically with ...
Bernal bilayer graphene (BLG) offers a highly flexible platform for tuning the band structure, featuring two distinct regimes. One is a tunable band gap induced by large displacement fields. Another is a gapless metallic band occurring at low fields, featuring rich fine structure consisting of four...
grapheneground statesIII-V semiconductThe fractional quantum Hall effect is a canonical example of electron–electron interactions producing new ground states in many-body systems. Most fractional quantum Hall studies have focussed on the lowest Landau level, whose fractional states are successfully ...
et al. Boron nitride substrates for high-quality graphene electronics. Nat. Nanotechnol. 5, 722–726 (2010). Article ADS CAS Google Scholar Zibrov, A. A. et al. Tunable interacting composite fermion phases in a half-filled bilayer-graphene Landau level. Nature 549, 360–364 (2017). ...
Landau-level degeneracy and quantum Hall effect in a graphite bilayer. Interlayer asymmetry gap in the electronic band structure of bilayer graphene Unconventional quantum Hall effect and Berry|[rsquo]|s phase of 2|[pi]| in bilayer graphene ...
Landau-level degeneracy and quantum Hall effect in a graphite bilayer.Interlayer asymmetry gap in the electronic band structure of bilayer grapheneUnconventional quantum Hall effect and Berry|[rsquo]|s phase of 2|[pi]| in bilayer grapheneMolecular dynamics simulations of a fluid bilayer of ...
We present measurements of the electronic compressibility, K , of bilayer graphene in both zero and finite magnetic fields up to 14 T, and as a function of both the carrier density and electric field perpendicular to the graphene sheet. The low-energy hyperbolic band structure of bilayer ...
I. Fal'ko, Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene. Phys. Rev. B 83, 115455 (... C Toke,VI Fal'Ko - 《Physical Review B Condensed Matter》 被引量: 46发表: 2011年 Intra-Landau-level magnetoexcitons and the transition ...