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Superconductivity and electronic structures of nickelate thin film superstructures

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Why This Matters

Recent advancements in nickelate thin films and pressurized single crystals have demonstrated high-temperature superconductivity, with critical temperatures reaching up to 96 K. These discoveries highlight nickelates as promising alternatives to cuprates, potentially transforming superconductor applications and deepening understanding of unconventional superconductivity in the tech industry. Such progress could lead to more efficient energy transmission, advanced electronic devices, and novel quantum technologies for consumers.

Key Takeaways

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 La 3 Ni 2 O 7 −δ . Nat. Phys. 20, 1269–1273 (2024).

Zhu, Y. et al. Superconductivity in pressurized trilayer La 4 Ni 3 O 10 −δ single crystals. Nature 631, 531–536 (2024).

Wang, N. et al. Bulk high-temperature superconductivity in pressurized tetragonal La 2 PrNi 2 O 7 . Nature 634, 579–584 (2024).

Ko, E. K. et al. Signatures of ambient pressure superconductivity in thin film La 3 Ni 2 O 7 . Nature 638, 935–940 (2025).

Zhou, G. et al. Ambient-pressure superconductivity onset above 40 K in (La,Pr) 3 Ni 2 O 7 films. Nature 640, 641–646 (2025).

Shi, M. et al. Pressure induced superconductivity in hybrid Ruddlesden-Popper La 5 Ni 3 O 11 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).

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