On this research, we measured the physical property of SrFeO2. This material is iron based layered material, and show antiferromagnetism and insulating at an ambient pressure. The crystal structure of SrFeO2 is same as that of SrCuO2, which is known as showing high-temperature superconductivity. If magnetism disappears and metallization occurs, SrFeO2 may show superconductivity because of the crystal structure. In this research, we aim to observe pressure induced metallization and search for superconductivity in this materials by electrical resistivity measurement under high pressure.
本研究で我々はSrFeO2の物性測定を行った。この物質は鉄系層状物質として知られており、常圧下で反強磁性、絶縁体を示す。SrFeO2の結晶構造は高温超伝導体として知られるSrCuO2と同じ構造をしている。もし磁性が消え金属化が起こればSrFeO2はその結晶構造から超伝導が起こるかもしれない。そこで本研究では圧力誘起金属化と超伝導の発現を目指し、高圧力下での電気抵抗測定を行った。