YBa2Cu3O7-δ thick films grown on textured metal substrates by liquid-phase epitaxy process

T. Maeda, S. B. Kim, T. Suga, H. Kurosaki, T. Yuasa, Yasuji Yamada, Yutaka Yamada, H. Yoshino, M. Yamazaki, T. D. Thanh, T. Watanabe, K. Matsumoto, I. Hirabayashi

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)


Towards high-current wire application of high-temperature superconductors, YBa2Cu3O7-δ (YBCO) thick films are grown by means of a liquid-phase epitaxy (LPE) process on a (001) surface of NiO single crystal and laser-sputtered NiO buffer layer deposited on a (001) surface of SrTiO3 single crystal. NiO buffer layers can be rapidly formed on textured Ni tape by the recently developed "Surface-Oxidation-Epitaxy" (SOE) technique which is expected to be a low-cost production method of long metal substrates with highly-textured oxide buffer layer. LPE growth on SOE-buffered textured Ni tapes are also attempted. Moreover, we successfully prepared ∼0.1 m-long LPE-YBCO tapes on {120}<21̄0> Ag-0.1 wt.% Cu alloy tape by using a specially designed LPE furnace equipped with a "reel-to-reel" attachment. BaF2-added BaO-CuO flux is used in this work, in which the growth temperature of YBCO is drastically lowered from usually used value of ∼1000°C down to 900-930°C. While current transport performances of these LPE-YBCO films are still insufficient for high-current wire application, the present results show the high potential of this LPE process for long-length coated-conductor production.

Original languageEnglish
Pages (from-to)2931-2934
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1 III
Publication statusPublished - Mar 2001
Externally publishedYes
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: Sep 17 2000Sep 22 2000


  • Biaxial texture
  • Coated conductor
  • Liquid-phase epitaxy
  • Metal substrate
  • Reel-to-reel system

ASJC Scopus subject areas

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


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