Publications

Highlight publications:

One-dimensional proximity superconductivity in the quantum Hall regime
Julien Barrier et al.
Nature 628 (8009), 741-745 (2024)

Coulomb screening of superconductivity in magic-angle twisted bilayer graphene
Julien Barrier, Liangtao Peng, Shuigang Xu, V.I. Fal'ko, K. Watanabe, T. Tanigushi, A.K. Geim, S. Adam, Alexey I. Berdyugin
arxiv 2412.01577

Moiré nano-optoelectronics
J. Barrier, R. Krishna Kumar and F.H.L. Koppens
The 2D Materials Roadmap, 2D Materials 13, 021501 (2026)

Publications about electron-electron interactions:

Continuous correlated states and dual-flatness in a moiré heterostructure
M.M. Al Ezzi et al.
arxiv 2604.13958

Proximity screening greatly enhances electronic quality of graphene
D. Domaretskiy et al.
Nature 644 (8077) 644-651 (2025)

Giant magnetoresistance of Dirac plasma in high-mobility graphene
N. Xin et al.
Nature, 616 (7956), 270-274 (2023)

Tunable van Hove singularities and correlated states in twisted monolayer-bilayer graphene
S. Xu et al.
Nature Physics 17, 619-626 (2021)

Electronic phase separation in multilayer rhombohedral graphite
Y. Shi et al.
Nature, 584 (7820), 210-219 (2020)

Publications about nanophotonics

Moiré nano-optoelectronics
J. Barrier, R. Krishna Kumar and F.H.L. Koppens
The 2D Materials Roadmap, 2D Materials 13, 021501 (2026)

Photonics in flatland: challenges and opportunities for nanophotonics with 2D semiconductors
A. Azimi, et al.
npj Nanophotonics 2 (1), 44 (2025)

Single-photon detection and negative differential conductance in a bilayer graphene superlattice
K. Nowakowski et al.
Science 389, 644 (2025)

Terahertz photocurrent probe of quantum geometry and interactions in magic-angle twisted bilayer graphene
R. Krishna Kumar et al.
Nature Materials 24, 1034-1041 (2025)

Infrared spectroscopy for diagnosing superlattice minibands in twisted bilayer graphene near the magic angle
G. Li et al.
Nano Letters, 24 (50) 15956-15963 (2024)

Publications on low-dimensional systems

One-dimensional proximity superconductivity in the quantum Hall regime
J. Barrier et al.
Nature, 628 (8009) 741-745 (2024)

Long-range ballistic transport of Brown-Zak fermions in graphene superlattices
J. Barrier, et al.
Nature Communications, 11, 5756 (2020)