Thorium-doping–induced superconductivity up to 56 K in Gd1−xThxFeAsO
By Cao Wang, Linjun Li, S. Chi, Zengwei Zhu, Z. Ren, Yuke Li, Yuetao Wang, Xiao Lin, Yongkang Luo, Shuai Jiang and 3 more. 2008
488 citations recorded by the source corpus.
We report a new strategy to induce superconductivity in iron-based oxyarsenide. Instead of F- substitution for O2-, we employed Th4+ doping in GdFeAsO with the consideration of “lattice match" between Gd2O2 layers and Fe2As2 ones. As a result, superconductivity with Tconset as high as 56 K was realized in a Gd0.8Th0.2FeAsO polycrystalline sample. This Tc value is among the highest ever discovered in the iron-based oxypnictides.
Subfields: Accounting, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/b4bf531488c67444d7ca16878dc612e047c64fd5
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In Accounting
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Iron-based high transition temperature superconductors (2014, unknown): “The highest Tc in bulk iron-based superconductors is 55 K in SmO1−xFxFeAs reported by Ren et al. [6], and similarly in Gd1−xThxFeAsO [8].”
- Superconductivity in iron compounds (2011, background): “Substitution of four-valent Th for three-valent Gd (i.e., electron doping) inGd0:8Th0:2FeAsO leads toTc ¼ 56 K (C.Wang et al., 2008).”