Superconductivity at 36 K in gadolinium-arsenide oxides GdO1−xFxFeAs

  • Peng Cheng
  • Lei Fang
  • Huan Yang
  • XiYu Zhu
  • Gang Mu
  • HuiQian Luo
  • ZhaoSheng Wang
  • HaiHu Wen
Article

Abstract

In this paper we report the fabrication and superconducting properties of GdO1−xFxFeAs. It was found that when x is equal to 0.17, GdO0.83F0.17FeAs is a superconductor with the onset transition temperature Tcon ≈ 36.6 K. Resistivity anomaly near 130 K was observed for all samples up to x = 0.17, and such a phenomenon is similar to that of LaO1−xFxFeAs. Hall coefficient indicates that GdO1−xFxFeAs is conducted by electron-like charge carriers.

Keywords

iron-based superconductor high-temperature superconductor 

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Copyright information

© Science in China Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Peng Cheng
    • 1
    • 2
  • Lei Fang
    • 1
    • 2
  • Huan Yang
    • 1
    • 2
  • XiYu Zhu
    • 1
    • 2
  • Gang Mu
    • 1
    • 2
  • HuiQian Luo
    • 1
    • 2
  • ZhaoSheng Wang
    • 1
    • 2
  • HaiHu Wen
    • 1
    • 2
  1. 1.National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of SciencesBeijingChina
  2. 2.Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijingChina

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