Author(s): Chao Deng, Motoharu Kitatani, Guiwen Jiang, Siqi Guo, Niklas Witt, Ao Zhang, Wenfeng Wu, Mi Jiang, Karsten Held, and Liang Si Intercalation-driven self-doping is a general mechanism for engineering high-temperature superconductivity and emergent quantum states in Ruddlesden–Popper phase correlated oxides. [Phys. Rev. Lett. 137, 086004] Published Thu Aug 20, 2026