Superconductivity at 53.5 K in GdFeAsO1−δ

By Jie Yang, Zhengcai Li, Wei Lu, W. Yi, Xiaoli Shen, Z. Ren, G. Che, Xiaoli Dong, Liling Sun, F. Zhou and 1 more. 2008

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Here we report the fabrication and superconductivity of the iron-based arsenic oxide GdFeAsO1−δ compound with oxygen-deficiency, which has an onset resistivity transition temperature at 53.5 K. This material has the same crystal structure as the newly discovered high-Tc ReFeAsO1−δ family (Re = rare earth metal) and a further reduced crystal lattice, while the Tc starts to decrease compared with the SmFeAsO1−δ system.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/b17c673bc83ee9ad0a502c8817f4df0010b28340