Superconductivity of 30.4 K and Its Reemergence under Pressure in Fe 1.11 Se Synthesized via Ion-Exchange and Deintercalation Reaction - Mingzhang Yang; Yuxin Ma; Qi Li; Ke Ma; Jiali Lu; Zhaolong Liu; Ruijin Sun; Tianping Ying; Mengdi Wang; Xin Chen; Changchun Zhao; Jian-gang Guo; et al. (Journal of the American Chemical Society, 2026)