Superconductivity at 56 K in samarium-doped SrFeAsF

  title={Superconductivity at 56 K in samarium-doped SrFeAsF},
  author={G. Wu and Y. L. Xie and H. Chen and M. L. Zhong and R. H. Liu and B. C. Shi and Q. J. Li and X. F. Wang and T. Wu and Y. J. Yan and Jianjun Ying and X. H. Chen},
  journal={Journal of Physics: Condensed Matter},
  • G. WuY. Xie X. H. Chen
  • Published 5 November 2008
  • Physics, Materials Science
  • Journal of Physics: Condensed Matter
We synthesized the samples Sr1−xSmxFFeAs with a ZrCuSiAs-type structure. These samples were characterized by resistivity and susceptibility. It is found that substitution of rare earth metal for alkaline earth metal in this system suppresses the anomaly in resistivity and induces superconductivity. Superconductivity at 56 K in nominal composition Sr0.5Sm0.5FFeAs is realized, indicating that the superconducting transition temperatures in the iron arsenide fluorides can reach as high as that in… 

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