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Superconductivity at 55 K in iron-based F-doped layered quaternary compound Sm[O1-xFx]FeAs

2008; Cornell University; Linguagem: Inglês

10.48550/arxiv.0804.2053

Zhi-An Ren, Wei Lü, Jie Yang, Wei Yi, Xiaoli Shen, Zhengcai Li, Guangcan Che, Xiaoli Dong, Liling Sun, Fang Zhou, Zhongxian Zhao,

Corporate Taxation and Avoidance

Here we report the superconductivity in the iron-based oxyarsenide Sm[O1-xFx]FeAs, with the onset resistivity transition temperature at 55.0 K and Meissner transition at 54.6 K. This compound has the same crystal structure as LaOFeAs with shrunk crystal lattices, and becomes the superconductor with the highest critical temperature among all materials besides copper oxides.