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Superconductivity at 36 K in gadolinium-arsenide oxides GdO1−x F x FeAs

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Abstract

In this paper we report the fabrication and superconducting properties of GdO1−x F x FeAs. It was found that when x is equal to 0.17, GdO0.83F0.17FeAs is a superconductor with the onset transition temperature T onc ≈ 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−x F x FeAs. Hall coefficient indicates that GdO1−x F x FeAs is conducted by electron-like charge carriers.

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Authors and Affiliations

  1. National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

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

  2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

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

Authors
  1. Peng Cheng
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  2. Lei Fang
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  3. Huan Yang
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  4. XiYu Zhu
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  5. Gang Mu
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  6. HuiQian Luo
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  7. ZhaoSheng Wang
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  8. HaiHu Wen
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Corresponding author

Correspondence to HaiHu Wen.

Additional information

Recommended by Prof. Nie Yuxin, Executive Editor of Science in China Series G-Physics, Mechanics & Astronomy

Supported by the National Natural Science Foundation of China (Grant Nos. 10221002/A0402 and 10774170/A0402), the National Basic Research Program of China (973 Program) (Grant Nos. 2006CB601000, 2006CB921107 and 2006CB921802), and the Chinese Academy of Sciences (ITSNEM)

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Cheng, P., Fang, L., Yang, H. et al. Superconductivity at 36 K in gadolinium-arsenide oxides GdO1−x F x FeAs. Sci. China Ser. G-Phys. Mech. Astron. 51, 719–722 (2008). https://doi.org/10.1007/s11433-008-0075-9

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  • DOI: https://doi.org/10.1007/s11433-008-0075-9

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