Nature CommunicationsAnisotropic phase stiffness in infinite-layer nickelates superconductorsMinyi XuDong QiuMinghui XuYehao GuoCheng ShenChao YangWenjie SunYuefeng NieZi-Xiang LiTao XiangLiang QiaoJie XiongYanrong Li2025-07-23Full textDOI https://doi.org/10.1038/s41467-025-61654-9