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2017 Volume 34 Issue 7
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Yulong Huang, ZhongpeiFeng, Shunli Ni, Jun Li, Wei Hu, Shaobo Liu, Yiyuan Mao, Huaxue Zhou, Fang Zhou, Kui Jin, Huabing Wang, Jie Yuan, Xiaoli Dong, Zhongxian Zhao. 2017: Superconducting (Li,Fe)OHFeSe Film of High Quality and High Critical Parameters, Chinese Physics Letters, 34(7): 242-245. doi: 10.1088/0256-307X/34/7/077404
Citation: Yulong Huang, ZhongpeiFeng, Shunli Ni, Jun Li, Wei Hu, Shaobo Liu, Yiyuan Mao, Huaxue Zhou, Fang Zhou, Kui Jin, Huabing Wang, Jie Yuan, Xiaoli Dong, Zhongxian Zhao. 2017: Superconducting (Li,Fe)OHFeSe Film of High Quality and High Critical Parameters, Chinese Physics Letters, 34(7): 242-245. doi: 10.1088/0256-307X/34/7/077404
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Superconducting (Li,Fe)OHFeSe Film of High Quality and High Critical Parameters

  • Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences,Beijing 100190;University of Chinese Academy of Sciences, Beijing 100049

  • Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210093

  • Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences,Beijing 100190

  • Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences,Beijing 100190;University of Chinese Academy of Sciences, Beijing 100049;Key Laboratory for Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100049

  • Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences,Beijing 100190;Key Laboratory for Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100049

  • Available Online: 30/12/2017
  • Fund Project: the National Basic Research Program of China under Grant No 2017YFA0303000,the National Natural Science Foundation of China under Grant Nos 11574370,11234006 and 61501220,the Strategic Priority Research Program and Key Research Program of Frontier Sciences of the Chinese Academy of Sciences under Grant Nos QYZDY-SSW-SLH001,QYZDY-SSW-SLH008 and XDB07020100
  • A superconducting film of (Li1-xFex)OHFeSe is reported for the first time.The thin film exhibits a small in-plane crystal mosaic of 0.22°,in terms of the full width at half maximum of the x-ray rocking curve,and an excellent out-of-plane orientation by x-ray φ-scan.Its bulk superconducting transition temperature Tc of 42.4 K is characterized by both zero electrical resistance and diamagnetization measurements.The upper critical field Hc2 is estimated to be 79.5 T and 443 T for the magnetic field perpendicular and parallel to the ab plane,respectively.Moreover,a large critical current density Jc of a value over 0.5 MA/cm2 is achieved at ～20K.Such a (Li1-xFex)OHFeSe film is therefore not only important to the fundamental research for understanding the high-Tc mechanism,but also promising in the field of high-Tc superconductivity application,especially in high-performance electronic devices and large scientific facilities such as superconducting accelerator.
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Superconducting (Li,Fe)OHFeSe Film of High Quality and High Critical Parameters

  • Available Online: 30/12/2017

Abstract: A superconducting film of (Li1-xFex)OHFeSe is reported for the first time.The thin film exhibits a small in-plane crystal mosaic of 0.22°,in terms of the full width at half maximum of the x-ray rocking curve,and an excellent out-of-plane orientation by x-ray φ-scan.Its bulk superconducting transition temperature Tc of 42.4 K is characterized by both zero electrical resistance and diamagnetization measurements.The upper critical field Hc2 is estimated to be 79.5 T and 443 T for the magnetic field perpendicular and parallel to the ab plane,respectively.Moreover,a large critical current density Jc of a value over 0.5 MA/cm2 is achieved at ～20K.Such a (Li1-xFex)OHFeSe film is therefore not only important to the fundamental research for understanding the high-Tc mechanism,but also promising in the field of high-Tc superconductivity application,especially in high-performance electronic devices and large scientific facilities such as superconducting accelerator.

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