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Peer-reviewedCC BYPhysical review. B./Physical review. B

Interplay between many-body correlations, strain, and lattice relaxation in twisted bilayer graphene

  • Lorenzo Crippa1
  • Gautam Rai2,1
  • Dumitru Călugăru3,4
  • Haoyu Hu5
  • Jonah Herzog-Arbeitman3
  • Bogdan Andrei Bernevig5,6,3
  • Roser Valentí7
  • Giorgio Sangiovanni8
  • Tim Oliver Wehling2,1
8 affiliations
  1. 1University of Hamburg
  2. 2Hamburg Centre for Ultrafast Imaging
  3. 3Princeton University
  4. 4University of Oxford
  5. 5Donostia International Physics Center
  6. 6IKERBASQUE
  7. 7Goethe Universität Frankfurt
  8. 8Universität Würzburg
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Abstract

In twisted bilayer graphene, a unified understanding of the mechanisms governing temperature-dependent electronic spectra and thermodynamic properties remains controversial despite extensive theoretical efforts. Here, we present a comprehensive theoretical framework that quantitatively accounts for scanning tunneling spectroscopy, quantum twisting microscopy, and thermodynamic properties of magic angle twisted bilayer graphene. We demonstrate that the observed behavior arises from the interplay between electron correlations and external symmetry breaking induced by strain and lattice relaxation. These effects act cooperatively to shape the emergent electronic behavior, leaving characteristic signatures across spectroscopy, compressibility, and entropy.

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Cite

BibTeXRIS
BibTeX
@article{crippa2026interplay,
  title = {{Interplay between many-body correlations, strain, and lattice relaxation in twisted bilayer graphene}},
  author = {Lorenzo Crippa and Gautam Rai and Dumitru Călugăru and Haoyu Hu and Jonah Herzog-Arbeitman and Bogdan Andrei Bernevig and Roser Valentí and Giorgio Sangiovanni and Tim Oliver Wehling},
  journal = {Physical review. B./Physical review. B},
  year = {2026},
  month = jun,
  doi = {10.1103/x2mz-hm8y},
  url = {https://doi.org/10.1103/x2mz-hm8y},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Interplay between many-body correlations, strain, and lattice relaxation in twisted bilayer graphene
AU  - Lorenzo Crippa
AU  - Gautam Rai
AU  - Dumitru Călugăru
AU  - Haoyu Hu
AU  - Jonah Herzog-Arbeitman
AU  - Bogdan Andrei Bernevig
AU  - Roser Valentí
AU  - Giorgio Sangiovanni
AU  - Tim Oliver Wehling
PY  - 2026
DA  - 2026/06/02
JO  - Physical review. B./Physical review. B
DO  - 10.1103/x2mz-hm8y
UR  - https://doi.org/10.1103/x2mz-hm8y
AB  - In twisted bilayer graphene, a unified understanding of the mechanisms governing temperature-dependent electronic spectra and thermodynamic properties remains controversial despite extensive theoretical efforts. Here, we present a comprehensive theoretical framework that quantitatively accounts for scanning tunneling spectroscopy, quantum twisting microscopy, and thermodynamic properties of magic angle twisted bilayer graphene. We demonstrate that the observed behavior arises from the interplay between electron correlations and external symmetry breaking induced by strain and lattice relaxation. These effects act cooperatively to shape the emergent electronic behavior, leaving characteristic signatures across spectroscopy, compressibility, and entropy.
SN  - 2469-9950
SN  - 2469-9969
SN  - 2469-9977
ER  -