Flux pinning properties of Sm1+xBa2-xCu3Oy films with BaZrO3 nanorods fabricated by low-temperature growth technique

T. Ozaki, Y. Yoshida, Y. Ichino, Y. Takai, K. Matsumoto, A. Ichinose, S. Horii, Masashi Mukaida

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    10 Citations (Scopus)

    Abstract

    We have fabricated high-Jc Sm1+xBa2-xCu3Oy (SmBCO) films including nanosize low-Tc phases within the high-Tc matrix by using a low-temperature growth (LTG) technique. On the other hand, as a promising approach of enhancing the magnetic flux pinning, it has been a focus of attention to introduce columnar defects of self-organized BaZrO3 (BZO) nanorods along c-axis of films. In this study, we incorporated BZO nanorods into LTG-SmBCO film for further enhancement of the flux pinning. As a result, the magnetic field angular dependence of Jc at 77 K of the 2 vol.% BZO doped LTG-SmBCO film was isotropic. Additionally the Jc peak for the c-axis direction was much broader and higher than that of the usual LTG-SmBCO films. These indicate that not only low-Tc phases act as field-induced pinning centers but also BZO nanorods result in the enhancement of the flux pinning.

    Original languageEnglish
    Pages (from-to)1615-1618
    Number of pages4
    JournalPhysica C: Superconductivity and its applications
    Volume468
    Issue number15-20
    DOIs
    Publication statusPublished - Sep 15 2008

    All Science Journal Classification (ASJC) codes

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

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