Low temperature scanning laser microscopy of YBCO coated IBAD tapes

Takanobu Kiss, Masayoshi Inoue, Minoru Yasunaga, Hideaki Tokutomi, Yasuhiro Iijima, Kazuomi Kakimoto, Takashi Saitoh, Yoshitaka Tokunaga, Teruo Izumi, Yuh Shiohara

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Spatially resolved measurements of dissipative state in YBCO coated conductors have been carried out by use of the low temperature scanning laser microscopy (LTSLM). It has been shown that the current dependent dissipation peak is well scaled by the Gaussian distribution, and its normalized distribution becomes narrower in inversely proportion to the square root of power index in the local current-voltage characteristic. From the LTSLM analysis, we can collect positional information of current limiting coordinate as well as spatial variation of local critical current. Optimizing the measurement condition, we also succeeded to visualize the dissipation even in the tape which is covered by a 10 μm thick Ag stabilization layer.

Original languageEnglish
Pages (from-to)3656-3659
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume15
Issue number2 PART III
DOIs
Publication statusPublished - Jun 2005

All Science Journal Classification (ASJC) codes

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

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