Jie Yang et al 2008 Supercond. Sci. Technol. 21 082001 doi:10.1088/0953-2048/21/8/082001
Superconductivity at 53.5 K in GdFeAsO1−δ
FREE ARTICLEJie Yang, Zheng-Cai Li, Wei Lu, Wei Yi, Xiao-Li Shen, Zhi-An Ren1, Guang-Can Che, Xiao-Li Dong, Li-Ling Sun, Fang Zhou and Zhong-Xian Zhao1
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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.
- PACS
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74.62.Bf Effects of material synthesis, crystal structure, and chemical composition
74.62.Dh Effects of crystal defects, doping and substitution
74.25.Fy Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)
81.20.-n Methods of materials synthesis and materials processing
- Subjects
- Dates
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Issue 8 (August 2008)
Received 3 May 2008, in final form 5 May 2008
Published 20 May 2008
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Superconductivity at 53.5 K in GdFeAsO1−δ
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