BMO-Doped REBCO-Coated Conductors for Uniform In-Field Ic by Hot-Wall PLD Process Using IBAD Template

Y. Iijima, K. Kakimoto, M. Igarashi, S. Fujita, W. Hirata, S. Muto, T. Yoshida, Y. Adachi, M. Daibo, K. Naoe, T. Fukuzaki, K. Higashikawa, T. Kiss, S. Awaji

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

BaMO3 (BMO, M: Zr or Hf)-doped REBCO-coated conductors were prepared by Hot-Wall PLD method on IBAD template. The highest Jc was obtained for BaHfO3-doped EuBCO. Quite strong pinning force density (Fp) of 1.6 TN/m3 was observed at 4.2 K, 15 T, for a sample deposited with growth rate of ∼5 nm/s. It had strong c-axis correlated pinning at the temperature above 20 K with the matching field of ∼5 T. A 45-m-long sample was formed by productive high growth rate over 20 nm/s, being consistent with commercial nondoped conductors. It had also large Ic of 1687 A/cm and Fp of 0.96 7 TN/m3 was obtained at 4.2 K, 15 T. The end-to-end longitudinal Ic homogeneity (σ) at 77 K in low field was evaluated to be 2.2% by magnetization. Transport in-fields Ic were also measured for the both end points at 30 K, 2 T, resulting in 1863 and 1883A/cm, respectively.

Original languageEnglish
Article number7835658
JournalIEEE Transactions on Applied Superconductivity
Volume27
Issue number4
DOIs
Publication statusPublished - 2017 Jun

Keywords

  • 2G HTS Conductors
  • critical current
  • laser ablation
  • rare earth compounds

ASJC Scopus subject areas

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

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