Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs.

@article{Chen2008SuperconductivityA4,
  title={Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs.},
  author={G. Chen and Z. Li and D. Wu and G. Li and W. Hu and J. Dong and P. Zheng and J. Luo and N. Wang},
  journal={Physical review letters},
  year={2008},
  volume={100 24},
  pages={
          247002
        }
}
  • G. Chen, Z. Li, +6 authors N. Wang
  • Published 2008
  • Physics, Medicine
  • Physical review letters
  • A series of layered CeO1-xFxFeAs compounds with x=0 to 0.20 are synthesized by the solid state reaction method. Similar to the LaOFeAs, the pure CeOFeAs shows a strong resistivity anomaly near 145 K, which was ascribed to the spin-density-wave instability. F doping suppresses this instability and leads to the superconducting ground state. Most surprisingly, the superconducting transition temperature could reach as high as 41 K. Such a high T_{c} strongly challenges the classic BCS theory based… CONTINUE READING
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