Ke, Shaodong; Ke, Shao-dong; Miao, Chao-hang; Liu, Lin-fei - 2022
We prepared a series of Fe 1-x Cr x Se 1-y Te y polycrystalline bulks with solid state reaction method and measured the surface morphology, structure and superconducting properties of the samples. The results indicate that the optimal superconducting transition temperature T c of the as-grown...