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Moiré engineering of Cooper-pair density modulation states

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Why This Matters

This research advances our understanding of moiré engineering and its role in modulating Cooper-pair densities within unconventional superconductors, potentially paving the way for new quantum materials and devices. By revealing how symmetry breaking and lattice manipulations influence superconductivity at the atomic level, it offers promising avenues for designing next-generation electronic systems with enhanced performance and novel functionalities.

Key Takeaways

Kong, L. et al. Cooper-pair density modulation state in an iron-based superconductor. Nature 640, 55–61 (2025).

Papaj, M., Kong, L., Nadj-Perge, S. & Lee, P. A. Pair density modulation from glide symmetry breaking and nematic superconductivity. Preprint at https://doi.org/10.48550/arXiv.2506.19903 (2025).

Wei, T. et al. Observation of superconducting pair density modulation within lattice unit cell. Chin. Phys. Lett. 42, 027404 (2025).

Cao, Y. et al. Unconventional superconductivity in magic-angle graphene superlattices. Nature 556, 43–50 (2018).

Cao, Y. et al. Correlated insulator behaviour at half-filling in magic-angle graphene superlattices. Nature 556, 80–84 (2018).

Serlin, M. et al. Intrinsic quantized anomalous Hall effect in a moiré heterostructure. Science 367, 900–903 (2020).

Oh, M. et al. Evidence for unconventional superconductivity in twisted bilayer graphene. Nature 600, 240–245 (2021).

Guo, Y. et al. Superconductivity in 5.0° twisted bilayer WSe 2 . Nature 637, 839–845 (2025).

Xia, Y. et al. Superconductivity in twisted bilayer WSe 2 . Nature 637, 833–838 (2025).

Mao, J. et al. Evidence of flat bands and correlated states in buckled graphene superlattices. Nature 584, 215–220 (2020).

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