MO observation on YBa2Cu3O7-δ coated conductors obtained by TFA-MOD technique

Takato Machi, Junko Matsuda, Noriko Chikumoto, Izumi Hirabayashi, Yoshitaka Tokunaga, Yutaka Kitoh, Yuji Aoki, Teruo Izumi

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)


We have observed the flux penetration into a high-Tc superconducting YBa2Cu3O7-δ (YBCO) tape by a magneto-optical (MO) imaging technique in order to feed back to the R&D of processing. The MO images of YBCO coated conductor prepared by metal organic deposition using trifluoroacetates (TFA-MOD) showed many weak links such as periodic defect and other serious defects, which were corresponding to the dispersion of critical current along to length direction. Since the combination study of MO imaging with TEM observation revealed the reason of such defects, we could feed back to several processes. The new TFA-MOD tapes prepared by using an advanced process after using many innovations showed a homogeneous flux penetration observed by MO imaging, and then it is confirmed that the process went to higher stage rather than previous one.

ジャーナルPhysica C: Superconductivity and its applications
出版ステータス出版済み - 2005
イベントProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
継続期間: 11月 23 200411月 25 2004

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学


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