ハイブリッドAPC による高性能YBCO テープ線材の開発

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タイトル別名
  • Development of High-performance YBCO Tapes Containing Hybrid APCs
  • ハイブリッド APC ニ ヨル コウセイノウ YBCO テープ センザイ ノ カイハツ

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説明

YBa2Cu3O7(YBCO) films containing hybrid artificial pinning centers(APCs) of BaSnO3(BSO) nanorods and Y2O3 nanoparticles were fabricated on ion beam assisted deposition(IBAD)-MgO substrates. By changing contents of BSO and Y2O3, critical current density (Jc) properties were controlled. The YBCO film containing high density of BSO and Y2O3 exhibited high Jc in high magnetic fields, and an isotropic angular dependence of Jc was obtained in a low magnetic field in a film containing moderate density of nanorods and nanoparticles, showing that hybrid APCs have the potential to improve Jc performance. BSO content is the most crucial factor for Fp,max in a magnetic field parallel to the c-axis, and Y2O3 nanoparticles can significantly improve Fp,max in a magnetic field tilted from the c-axis. Advanced control of nanorods and nanoparticles is needed for realization of higher Jc performance.

収録刊行物

  • 低温工学

    低温工学 49 (3), 105-112, 2014

    公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)

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