Sun, H. et al. Signatures of superconductivity near 80 K in a nickelate under high pressure. Nature 621, 493–498 (2023).
Zhang, Y. et al. High-temperature superconductivity with zero resistance and strange-metal behaviour in La3Ni2O7−δ. Nat. Phys. 20, 1269–1273 (2024).
Zhu, Y. et al. Superconductivity in pressurized trilayer La4Ni3O10−δ single crystals. Nature 631, 531–536 (2024).
Wang, N. et al. Bulk high-temperature superconductivity in pressurized tetragonal La2PrNi2O7. Nature 634, 579–584 (2024).
Ko, E. K. et al. Signatures of ambient pressure superconductivity in thin film La3Ni2O7. Nature 638, 935–940 (2025).
Zhou, G. et al. Ambient-pressure superconductivity onset above 40 K in (La,Pr)3Ni2O7 films. Nature 640, 641–646 (2025).
Shi, M. et al. Pressure induced superconductivity in hybrid Ruddlesden-Popper La5Ni3O11 single crystals. Nat. Phys. 21, 1780–1786 (2025).
Li, D. et al. Superconductivity in an infinite-layer nickelate. Nature 572, 624–627 (2019).
Pan, G. A. et al. Superconductivity in a quintuple-layer square-planar nickelate. Nat. Mater. 21, 160–164 (2022).
Yan, X. et al. Superconductivity in an ultrathin multilayer nickelate. Sci. Adv. 11, eado4572 (2025).
Wang, Y. et al. Recent progress in nickelate superconductors. Natl Sci. Rev. 12, nwaf373 (2025).
Chen, Z. & Huang, H. The nickelate bridge between cuprate and iron-based superconductivity. Quantum Front. 4, 17 (2025).
Li, F. et al. Bulk superconductivity up to 96 K in pressurized nickelate single crystals. Nature 649, 871–878 (2026).
Li, Q. et al. Signature of superconductivity in pressurized La4Ni3O10. Chin. Phys. Lett. 41, 017401 (2024).
Zhang, M. et al. Superconductivity in trilayer nickelate La4Ni3O10 under pressure. Phys. Rev. X 15, 021005 (2025).
Li, F. et al. Design and synthesis of three-dimensional hybrid Ruddlesden-Popper nickelate single crystals. Phys. Rev. Mater. 8, 053401 (2024).
Luo, Z., Hu, X., Wang, M., Wú, W. & Yao, D.-X. Bilayer two-orbital model of La3Ni2O7 under pressure. Phys. Rev. Lett. 131, 126001 (2023).
Shen, Y., Qin, M. & Zhang, G.-M. Effective bi-layer model Hamiltonian and density-matrix renormalization group study for the high-Tc superconductivity in La3Ni2O7 under high pressure. Chin. Phys. Lett. 40, 127401 (2023).
Yang, J. et al. Orbital-dependent electron correlation in double-layer nickelate La3Ni2O7. Nat. Commun. 15, 4373 (2024).
Li, Y. et al. Electronic correlation and pseudogap-like behavior of high-temperature superconductor La3Ni2O7. Chin. Phys. Lett. 41, 087402 (2024).
Au-Yeung, C. C. et al. Universal electronic structure of multi-layered nickelates via oxygen-centered planar orbitals. Preprint at https://arxiv.org/abs/2502.20450 (2025).
Yang, Y. -f, Zhang, G.-M. & Zhang, F.-C. Interlayer valence bonds and two-component theory for high-Tc superconductivity of La3Ni2O7 under pressure. Phys. Rev. B 108, L201108 (2023).
Lechermann, F., Gondolf, J., Botzel, S. & Eremin, I. M. Electronic correlations and superconducting instability in La3Ni2O7 under high pressure. Phys. Rev. B 108, L201121 (2023).
Lu, C., Pan, Z., Yang, F. & Wu, C. Interlayer-coupling-driven high-temperature superconductivity in La3Ni2O7 under pressure. Phys. Rev. Lett. 132, 146002 (2024).
Fan, Z. et al. Superconductivity in nickelate and cuprate superconductors with strong bilayer coupling. Phys. Rev. B 110, 024514 (2024).
Jiang, K., Wang, Z. & Zhang, F.-C. High-temperature superconductivity in La3Ni2O7. Chin. Phys. Lett. 41, 017402 (2024).
Gu, Y., Le, C., Yang, Z., Wu, X. & Hu, J. Effective model and pairing tendency in the bilayer Ni-based superconductor La3Ni2O7. Phys. Rev. B 111, 174506 (2025).
Zhao, Y.-F. & Botana, A. S. Electronic structure of Ruddlesden-Popper nickelates: strain to mimic the effects of pressure. Phys. Rev. B 111, 115154 (2025).
Yue, C. et al. Correlated electronic structures and unconventional superconductivity in bilayer nickelate heterostructures. Natl Sci. Rev. 12, nwaf253 (2025).
Hu, X., Qiu, W., Chen, C.-Q., Luo, Z. & Yao, D.-X. Electronic structures and multi-orbital models of La3Ni2O7 thin films at ambient pressure. Commun. Phys. 8, 506 (2025).
Bhatta, H. C. R. B., Zhang, X. Z., Zhong, Y. & Jia, C. Structural and electronic evolution of bilayer nickelates under biaxial strain. Preprint at https://arxiv.org/abs/2502.01624 (2025).
Liu, Y. et al. Superconductivity and normal-state transport in compressively strained La2PrNi2O7 thin films. Nat. Mater. 24, 1221–1227 (2025).
Hao, B. et al. Superconductivity in Sr-doped La3Ni2O7 thin films. Nat. Mater. 24, 1756–1762 (2025).
Li, P. et al. Angle-resolved photoemission spectroscopy of superconducting (La,Pr)3Ni2O7/SrLaAlO4 heterostructures. Natl Sci. Rev. 12, nwaf205 (2025).
Shen, J. et al. Nodeless superconducting gap and electron-boson coupling in (La,Pr,Sm)3Ni2O7 films. Preprint at https://arxiv.org/abs/2502.17831 (2025).
Wang, B. Y. et al. Electronic structure of compressively strained thin film La2PrNi2O7. Preprint at https://arxiv.org/abs/2504.16372 (2025).
Sun, W. et al. Observation of superconductivity-induced leading-edge gap in Sr-doped La3Ni2O7 thin films. Preprint at https://arxiv.org/abs/2507.07409 (2025).
Zhou, G. et al. Gigantic-oxidative atomic-layer-by-layer epitaxy for artificially designed complex oxides. Natl Sci. Rev. 12, nwae429 (2025).
Chen, X. et al. Polymorphism in the Ruddlesden–Popper nickelate La3Ni2O7: discovery of a hidden phase with distinctive layer stacking. J. Am. Chem. Soc. 146, 3640–3645 (2024).
Dong, Z. et al. Interstitial oxygen order and its competition with superconductivity in La2PrNi2O7+δ. Nat. Mater. 24, 1927–1934 (2025).
Puphal, P. et al. Unconventional crystal structure of the high-pressure superconductor La3Ni2O7. Phys. Rev. Lett. 133, 146002 (2024).
Huang, C. et al. Superconductivity in monolayer-trilayer phase of La3Ni2O7 under high pressure. Preprint at https://arxiv.org/abs/2510.12250 (2025).
Wang, M. et al. Superconducting dome in La3−xSrxNi2O7−δ thin films. Phys. Rev. Lett. 136, 066002 (2026).
Wang, H. et al. Electronic structures across the superconductor-insulator transition at La2.85Pr0.15Ni2O7/SrLaAlO4 interfaces. Preprint at https://arxiv.org/abs/2502.18068 (2025).
Zhang, Y. et al. Electronic structure, and magnetic and superconducting pairing tendencies of the alternating single layer-bilayer stacking nickelate La5Ni3O11 under pressure. Phys. Rev. B 112, 094515 (2025).
Zhang, M., Chen, C.-Q., Yao, D.-X. & Yang, F. Pairing mechanism and superconductivity in pressurized La5Ni3O11. Sci. China Phys. Mech. Astron. 69, 257411 (2026).
Ouyang, Z., He, R.-Q. & Lu, Z.-Y. Phase diagrams and two key factors to superconductivity of Ruddlesden-Popper nickelates. Phys. Rev. B 112, 045127 (2025).
LaBollita, H. & Botana, A. S. Correlated electronic structure of the alternating single-layer bilayer nickelate La5Ni3O11. Preprint at http://arXiv.org/abs/2505.07394 (2025).
Abadi, S. et al. Electronic structure of the alternating monolayer-trilayer phase of La3Ni2O7. Phys. Rev. Lett. 134, 126001 (2025).
Cao, Y.-H., Jiang, K.-Y., Lu, H.-Y., Wang, D. & Wang, Q.-H. Strain-engineered electronic structure and superconductivity in La3Ni2O7 thin films. Sci. China Phys. Mech. Astron. 69, 247412 (2026).
Kim, J. et al. Defect engineering in A2BO4 thin films via surface-reconstructed LaSrAlO4 substrates. Small Methods 6, 2200880 (2022).
Lyu, W. et al. Preparation and optimization of high-temperature superconducting Ruddlesden-Popper nickelate thin films. Acta Phys. Sin. 74, 227403 (2025).
Shi, Y. et al. Critical thickness and long-term ambient stability in superconducting LaPr2Ni2O7 films. Adv. Mater. 38, e10394 (2026).
Harper, F. E. & Tinkham, M. The mixed state in superconducting thin films. Phys. Rev. 172, 441–450 (1968).
Gurevich, A. Enhancement of the upper critical field by nonmagnetic impurities in dirty two-gap superconductors. Phys. Rev. B 67, 184515 (2003).
Tinkham, M. Introduction to Superconductivity (McGraw-Hill, 1996).
Ding, X. et al. Cuprate-like electronic structures in infinite-layer nickelates with substantial hole dopings. Natl Sci. Rev. 11, nwae194 (2024).
Sun, W. et al. Electronic structure of superconducting infinite-layer lanthanum nickelates. Sci. Adv. 11, eadr5116 (2025).
Graf, J., Gweon, G. H. & Lanzara, A. Universal waterfall-like feature in the spectral function of high temperature superconductors. Physica C 460–462, 194–197 (2007).
Krsnik, J. & Held, K. Local correlations necessitate waterfalls as a connection between quasiparticle band and developing Hubbard bands. Nat. Commun. 16, 255 (2025).
Bansil, A., Markiewicz, R. S., Kusko, C., Lindroos, M. & Sahrakorpi, S. Matrix element and strong electron correlation effects in ARPES from cuprates. J. Phys. Chem. Solids 65, 1417–1421 (2004).