Introduction of BaHfO<sub>3</sub> Nano Particle Pinning Centers in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> Films by Metal Organic Deposition

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  • 溶液塗布熱分解法によるYBa<sub>2</sub>Cu<sub>3</sub>O<sub>y </sub>薄膜へのBaHfO<sub>3 </sub>ナノ粒子 ピン止め点の導入
  • 溶液塗布熱分解法によるYBa₂Cu₃Oy薄膜へのBaHfO₃ナノ粒子ピン止め点の導入
  • ヨウエキ トフ ネツ ブンカイホウ ニ ヨル YBa ₂ Cu ₃ Oy ハクマク エ ノ BaHfO ₃ ナノ リュウシ ピンドメ テン ノ ドウニュウ
  • Introduction of BaHfO3 Nano Particle Pinning Centers in YBa2Cu3Oy Films by Metal Organic Deposition

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Abstract

YBa2Cu3Oy (YBCO) films with BaHfO3 (BHO) nanoparticles were fabricated by a metal organic deposition (MOD) method using a solution with trifluoroacetates and Hf salts. X-ray diffraction (XRD) revealed the formation of BHO in highly oriented YBCO film, and scanning transmission electron microscopy (STEM) with energy dispersive X-ray spectroscopy (EDS) showed the elemental distributions of Y, Cu, Ba, Hf and O in the film. The average size of BHO in the film was about 18 nm. Critical current density (Jc) properties of the films with BHO were higher than those of the films with BaZrO3 in magnetic fields.

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