中国科技大学合肥微尺度物质科学国家实验室的科学家在世界上首次利用水热反应方法,发现了一种新的铁基超导材料——锂铁氢氧铁硒化合物((Li0.8Fe0.2)OHFe Se),并与美国国家标准技术研究所等机构合作,结合X射线衍射、中子散射和核磁共振等3种技术手段,精确地确定了其结构。测量表明,该化合物的超导转变温度高达40K以上,由铁硒层和 Scientists at the Hefei National Laboratory for Microscale Physical Materials at China University of Science and Technology have used hydrothermal reaction for the first time in the world and discovered a new iron-based ferro-iron iron selenide compound ((Li0.8Fe0.2 ) OHFe Se). In addition, it cooperated with institutes such as the National Institute of Standards and Technology (USA) to determine its structure precisely by means of three techniques: X-ray diffraction, neutron scattering and nuclear magnetic resonance. Measurements show that the compound has a superconducting transition temperature of up to 40K and consists of an iron-selenium layer