Evidence for the Meissner Effect in the Nickelate Superconductor La3Ni2O7−δ Single Crystal Using Diamond Quantum SensorsRemoveLin Liu, Jianning Guo, Deyuan Hu, Guizhen Yan, Yuzhi Chen, Lunxuan Yu, Meng Wang, Xiao-Di Liu, and Xiaoli HuangPhys. Rev. Lett. 135, 096001 (2025)
