ArticleNature communications2024
Probing the tunable multi-cone band structure in Bernal bilayer graphene.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Satellite Dirac cones in phononic crystals.Nature communications · 2025Article
- Signatures of sliding Wigner crystals in bilayer graphene at zero and finite magnetic fields.Nature communications · 2025Article
- Confinement of charge carriers in gapped bilayer graphene within magnetic and electrostatic barriers.Scientific reports · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
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 linearly dispersing Dirac cones and van Hove singularities. Even though BLG has been extensively studied experimentally, the evidence of this band structure is still elusive, likely due to insufficient energy resolution. Here, we use Landau levels as markers of the energy dispersion and analyze the Landau level spectrum in a regime where the cyclotron orbits of electrons or holes in momentum space are small enough to resolve the distinct mini Dirac cones. We identify the presence of four Dirac cones and map out topological transitions induced by displacement field. By clarifying the low-energy properties of BLG bands, these findings provide a valuable addition to the toolkit for graphene electronics.
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Registered trials
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