Science in China Series G: Physics, Mechanics and Astronomy

, Volume 51, Issue 6, pp 719–722

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

Authors

  • Peng Cheng
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • Lei Fang
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • Huan Yang
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • XiYu Zhu
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • Gang Mu
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • HuiQian Luo
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
  • ZhaoSheng Wang
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
    • National Laboratory for Superconductivity, Institute of PhysicsChinese Academy of Sciences
    • Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of Sciences
Article

DOI: 10.1007/s11433-008-0075-9

Cite this article as:
Cheng, P., Fang, L., Yang, H. et al. Sci. China Ser. G-Phys. Mech. Astron. (2008) 51: 719. doi:10.1007/s11433-008-0075-9

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 superconductorhigh-temperature superconductor
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© Science in China Press and Springer-Verlag GmbH 2008