Doping Mn into (Li OHFe Se superconducting crystals via ion-exchange and ion-release/introduction syntheses
Zhou Huaxue1, 2, †, Ni Shunli2, 3, †, Yuan Jie2, 3, Li Jun4, Feng Zhongpei2, 3, Jiang Xingyu2, 3, Huang Yulong2, 3, Liu Shaobo2, 3, Mao Yiyuan2, 3, Zhou Fang2, 3, Jin Kui2, 3, Dong Xiaoli2, 3, ‡, Zhao Zhongxian2, 3
       

Sketch of two different hydrothermal routes, ion exchange (1-step) and ion release/introduction (2-step).