Synthesis of large FeSe superconductor crystals via ion release/introduction and property characterization

Yuan Dongna¹, Huang Yulong¹, Ni Shunli¹, Zhou Huaxue¹, Mao Yiyuan¹, Hu Wei¹, Yuan Jie¹, Jin Kui¹, Zhang Guangming³, Dong Xiaoli^{1, 2, †,}, Zhou Fang^{1, 2, ‡,}

Temperature dependence of the static magnetic susceptibility, corrected with the demagnetization factor, near the superconducting transitions for two hydrothermal FeSe crystal samples. The magnetic measurements were performed under H = 1 Oe.