Doping Mn into (Li<inline-formula> <img src="cpb_26_5_057402_ieqn1.gif"/> </inline-formula>OHFe<inline-formula> <img src="cpb_26_5_057402_ieqn2.gif"/> </inline-formula>Se superconducting crystals via ion-exchange and ion-release/introduction syntheses

Doping Mn into (Li

OHFe

Se superconducting crystals via ion-exchange and ion-release/introduction syntheses

Zhou Huaxue^{1, 2, †}, Ni Shunli^{2, 3, †}, Yuan Jie^{2, 3}, Li Jun⁴, Feng Zhongpei^{2, 3}, Jiang Xingyu^{2, 3}, Huang Yulong^{2, 3}, Liu Shaobo^{2, 3}, Mao Yiyuan^{2, 3}, Zhou Fang^{2, 3}, Jin Kui^{2, 3}, Dong Xiaoli^{2, 3, ‡}, Zhao Zhongxian^{2, 3}

(a) The XRD patterns of (00l) type for undoped (Li Fe OHFe Se and Mn-doped (Li Fe OHFe Se crystals grown via ion exchange (1-step) and ion release/introduction (2-step). (b) Zoom-in (006) peaks, showing the position shift from left to right for 2-step and more remarkable for 1-step. (c) and (d) The XRD data collected uniformly in 9 different regions on the same sample for 1-step and 2-step samples, respectively.