Ambient-pressure growth
High-quality bilayer nickelate single crystals synthesized at ambient pressure exhibit superconductivity up to 96 K under high pressure, overcoming previous challenges of high-pressure oxygen synthesis and reproducibility.
Li, Feiyu · Di, Peng · Dou, Jie · Guo, Ning · Liang-Liang, Ma · Zhang, Yulin · Luo, Jun · Yang, Jie · Zhang, Jian · Chang, Tieyan · Chen, Yusheng · Cai, Weizhao · Cheng, Jinguang · Wang, Yuzhu · Yuxin, Liu · Hirao, Naohisha · Matsuoka, Takahiro · Kadobayashi, Hirokazu · Zeng, Zhidan · Zheng, Qiang · Zhou, Rui · Zeng, Qiaoshi · Tao, Xutang · Zhang, Junjie
Nature 2025
Zero resistivity T<sub>c,max</sub><sup>zero</sup>=73 K at 21 GPa
Meissner effect T<sub>c</sub>=60 K at 20.6 GPa
T<sub>c</sub><sup>onset</sup> up to 96 K in La<sub>1.57</sub>Sm<sub>1.43</sub>Ni<sub>2</sub>O<sub>7-δ</sub>