한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제14권2호
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  • Pages.1-7
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  • 2012
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
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Evaluation of Critical Current Density of FeAs-based Superconductors

  • Otabe, Edmund S. (Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology) ;
  • Kiuchi, Masaru (Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology) ;
  • Matsushita, Teruo (Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology) ;
  • Ni, Baorong (Department of Information Electronics, Fukuoka Institute of Technology) ;
  • Qi, Yanpeng (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Wang, Lei (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Gao, Zhaoshun (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Wang, Dongliang (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Zhang, Xianping (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Ma, Yanwei (Institute of Electrical Engineering, Chinese Academy of Science) ;
  • Nakajima, Yasuyuki (Department Applied Physics, The University of Tokyo) ;
  • Tamegai, Tsuyoshi (TRIP-JST, Japan Science and Technology Agency)
  • 투고 : 2012.04.05
  • 심사 : 2012.05.10
  • 발행 : 2012.05.31
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초록

In this review paper, we report the characteristics of the critical current density in FeAs based superconductors which is newly discovered by Hosono group of Tokyo Institute of Technology on 2008. Since the many specimens in present stage are not single crystals, there are two kinds of critical current density observed in the specimens which are so-called local and global critical current densities. Therefore, it is necessary to evaluate both kinds of critical current densities. The history effect in which the global critical current density shows different values in increasing and decreasing magnetic field is also observed when the specimens have the local and the global critical current densities. The wire which critical current is 180 A is successfully developed with using the knowledge of abovementioned characteristics of two kinds of critical current densities and the history effect.

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참고문헌

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피인용 문헌

  1. FeTe0.6Se0.4 bulk single crystals with high critical current densities under magnetic fields vol.871, 2017, https://doi.org/10.1088/1742-6596/871/1/012064