Magnetic field dependence of critical current density and microstructure in Sm1-xBa2-xCu3Oy films on metallic substrates

Masashi Miura, Yutaka Yoshida, Toshinori Ozaki, Yusuke Ichino, Masakazu Mutoh, Shuhei Funaki, Yoshiaki Takai, Kaname Matsumoto, Ataru Ichinose, Shigeru Horii, Masashi Mukaida, Satoshi Awaji, Kazuo Watanabe

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10 Citations (Scopus)


We have reported high-Jc Sm1+xBa2-xCu 3Oy, (SmBCO) films on single crystal MgO prepared by pulsed laser deposition (PLD). In this study, we fabricate SmBCO films on metallic substrates using low temperature growth (LTG) technique, to investigate the availability of the LTG technique for coated conductors. The LTG-SmBCO films are deposited on PLD - CeO2/IBAD - YSZ/Hastelloy tapes. The critical current density (Jc) is 4.7 MA/cm2 (77 K, B//c, B = 0 T) and 0.23 MA/cm2 (77 K, B//c, B = 5 T). Furthermore, at 65 K and B = 17 T, the Jc of LTG-SmBCO film (B//c) reaches 0.03 MA/cm 2. These values are higher than those of conventional PLD-YBCO and PLD-SmBCO films. From these results, we suggest that the LTG is an effective technique for improving the magnetic field dependence of Jc of coated conductors.

Original languageEnglish
Pages (from-to)3247-3250
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - 2007 Jun


  • Critical current
  • Films
  • Flux pinning
  • Low temperature growth
  • SmBa CuO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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