Authors
Cao Wang, Linjun Li, Shun Chi, Zengwei Zhu, Zhi Ren, Yuke Li, Yuetao Wang, Xiao Lin, Yongkang Luo, Shuai Jiang, Xiangfan Xu, Guanghan Cao, Zhu'an Xu
Publication date
2008/9/9
Journal
EPL (Europhysics Letters)
Volume
83
Issue
6
Pages
67006
Publisher
IOP Publishing
Description
We report a new strategy to induce superconductivity in iron-based oxyarsenide. Instead of F-substitution for O 2-, we employed Th 4+ doping in GdFeAsO with the consideration of" lattice match" between Gd 2 O 2 layers and Fe 2 As 2 ones. As a result, superconductivity with T c onset as high as 56 K was realized in a Gd 0.8 Th 0.2 FeAsO polycrystalline sample. This T c value is among the highest ever discovered in the iron-based oxypnictides.
Total citations
Scholar articles
C Wang, L Li, S Chi, Z Zhu, Z Ren, Y Li, Y Wang, X Lin… - Europhysics Letters, 2008