Direct observation of flat bands in near-magic-angle twisted bilayer CVD graphene

@misc{baiardi2026direct,
  title = {{Direct observation of flat bands in near-magic-angle twisted bilayer CVD graphene}},
  author = {Gianluigi Baiardi and Alex Boschi and Giulia Piccinini and Vaidotas Mišeikis and Lorenzo Cavicchi and Aaron Bostwick and Chris Jozwiak and Eli Rotenberg and Kenji Watanabe and Takashi Taniguchi and Marco Polini and Fabio Beltram and Antonio Rossi and Stiven Forti and Sergio Pezzini and Camilla Coletti},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.02403},
  eprint = {2609.02403},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.02403},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Direct observation of flat bands in near-magic-angle twisted bilayer CVD graphene
AU  - Gianluigi Baiardi
AU  - Alex Boschi
AU  - Giulia Piccinini
AU  - Vaidotas Mišeikis
AU  - Lorenzo Cavicchi
AU  - Aaron Bostwick
AU  - Chris Jozwiak
AU  - Eli Rotenberg
AU  - Kenji Watanabe
AU  - Takashi Taniguchi
AU  - Marco Polini
AU  - Fabio Beltram
AU  - Antonio Rossi
AU  - Stiven Forti
AU  - Sergio Pezzini
AU  - Camilla Coletti
PY  - 2026
DA  - 2026/09/02
PB  - arXiv
DO  - 10.48550/arxiv.2609.02403
UR  - https://arxiv.org/abs/2609.02403
AB  - Advances in chemical vapor deposition (CVD) growth have driven graphene crystal quality to unprecedented levels, yet it is still unknown whether this route can realize the fragile flat-band and correlated states of the magic-angle (MA) twisted bilayer graphene (TBG). Here, we report on the experimental observation by room-temperature nano-angle-resolved photoemission spectroscopy (nano-ARPES) of flat bands in a TBG sample close to the MA, assembled via a grow-and-stack protocol based on low-pressure CVD of graphene on copper. Our study indicates electronic bands fully comparable to those measured in exfoliation-based samples and determines the size of the largest near-MA domain to be compatible with electronic transport experiments, motivating further experiments on flat band physics in CVD-graphene.
ER  -