论文部分内容阅读
中国科学院合肥物质科学研究院强磁场科学中心研究员田明亮课题组和张昌锦课题组合作在单晶超导纳米线的超导体-绝缘体转变研究中取得新进展,相关研究结果在线发表在美国化学学会《Nano Letters》上。长期以来准一维超导体的超导-绝缘体转变(SIT)研究一直广受关注,但是对控制SIT转变的机理还存在争论。因为在过去的研究中,国际上大多采用热蒸发的方法制备纳米条带,基本上是研究单元素或二元合金超导体材料,不同形貌的纳米线(颗粒状、多晶、非晶等)呈现出截然不同的SIT转变过程。因此利用单
Tian Mingliang, a researcher at the Strong Magnetic Field Science Center of the Hefei Institute of Material Science, Chinese Academy of Sciences, and Zhang Changjin's group have made new progress in the research of superconductor-insulator transition of single crystal superconducting nanowires. Relevant research results were published online at the American Chemical Society “Nano Letters. ” The superconducting-insulator transition (SIT) study of quasi-one-dimensional superconductors has long been a subject of great concern, but there is still debate about the mechanism by which SIT transitions can be controlled. Because in the past research, most of the international use of thermal evaporation method for the preparation of nanoribbons, is basically a single element or binary alloy superconductor materials, different morphology of nanowires (granular, polycrystalline, amorphous, etc.) Showing a very different SIT transformation process. So use a single