Flux pinning properties and microstructure in Sm1+xBa 2-xCu3Oy films with BaZrO3 nanorods fabricated by vapor-liquid-solid growth technique

Shuhei Funaki, Yutaka Yoshida, Yusuke Ichino, Toshinori Ozaki, Takahiro Harada, Yoshiaki Takai, Kaname Matsumoto, Ataru Ichinose, Masashi Mukaida, Ryusuke Kita, Shigeru Horii

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    6 Citations (Scopus)

    Abstract

    Abstract-For an improvement of Jc under applied magnetic fields, an addition of BaZr03 (BZO) nanorods into REBa2Cu 3Oy (REBCO) films is actively discussed. However, the growth mechanisms of the BZO nanorods are still evidently unexplained. In this study, in order to control the growth of BZO nanorods in REBCO films, we fabricated the Sm1+x,Ba2-x,Cu 30y (SmBCO) films containing BZO by conventional pulsed laser deposition (PLD-Sm+BZO) and Vapor-Liquid-Solid technique (VLS-Sm+BZO). The self field Jc's of PLD- and VLS-Sm+BZO films showed 1.3 MA/cm 2 and 1.2 MA/cm2, respectively. However, magnetic field dependence of the Jc for the VLS-Sm+BZO film was twice as high as that of the PLD-Sm+BZO film at 77 K, B = 5 T. From a microstructure analysis, we found the BZO nanorods in VLS-Sm+BZO film grew nearly straight along the c-axis of the SmBCO.

    Original languageEnglish
    Article number5153222
    Pages (from-to)3168-3171
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume19
    Issue number3
    DOIs
    Publication statusPublished - Jun 2009

    All Science Journal Classification (ASJC) codes

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

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