Room-Temperature Perovskite Ferromagnetic Insulator via Three-Dimensional Tensile StrainRemoveTianyu Li, Yali Yang, Shiqing Deng, Fangyuan Zhu, Tianfu Zhang, Yu Chen, Huanhua Wang, Feixiang Long, Xiaolong Li, Jia-Ou Wang, Tao Zhu, Mingxue Tang, Jiangang He, Oswaldo Diéguez, Er-Jia Guo, and Jun ChenPhys. Rev. Lett. 134, 016702 (2025)