Critical current density in Gd1Ba2Cu3O7-δ coated conductor under the influence of flux creep

Yuta Onodera, Takanobu Kiss, Suguru Gangi, Kazutaka Imamura, Kohei Higashikawa, Masayoshi Inoue, Masateru Yoshizumi, Teruo Izumi

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We have investigated electric field vs. current density(E-J) characteristics of Gd1Ba2Cu3O7-δ coated conductor over a wide range of E by deriving from magnetization relaxation and transport four-probe measurements. We succeeded in obtaining E-J characteristics between10-2 to 5×10-11 V/m, and analyzed the results within a frame work of the percolation transition model taking into account flux creep with a distribution of activation energy. This allows us to describe E-J characteristics as well as magnetic relaxation analytically based on the transport measurements. Clear deviation from the n-value model has also been confirmed from the experimental results.

Original languageEnglish
Pages (from-to)926-930
Number of pages5
JournalPhysics Procedia
Volume67
DOIs
Publication statusPublished - Jan 1 2015
Event25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014 - Enschede, Netherlands
Duration: Jul 7 2014Jul 11 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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