Study on local inhomogeneity in TFA-MOD YBCO coated conductor by use of low temperature scanning laser microscopy

M. Inoue, T. Kiss, H. Tokutomi, T. Shoyama, K. Imamura, M. Takeo, Y. Iijima, K. Kakimoto, T. Saitoh, Y. Tokunaga, T. Izumi, Y. Shiohara

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Abstract

We investigated the local inhomogeneity of flux flow dissipation by use of low temperature scanning laser microscopy (LTSLM) in a Y1Ba 2Cu3O7-δ (YBCO) coated conductor obtained by the Metal-Organic Deposition process using metal trifuluoroacetate (TFA-MOD process). The LTSLM images showed that the highest Jc value in local region reached almost two times higher than the minimum value, while the global Jc was limited by the weakest spot. Typical length scale of the spatial inhomogeneity of Jc was about several tens to hundreds μm.

Original languageEnglish
Pages (from-to)1073-1077
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume426-431
Issue numberII
DOIs
Publication statusPublished - Oct 6 2005
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: Nov 23 2004Nov 25 2004

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All Science Journal Classification (ASJC) codes

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

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