Fabrication of a/c axes oriented grain boundaries in YBCO films by selective growth

Y. Shingai, M. Mukaida, A. Ichinose, S. Horii, Y. Yoshida, K. Matsumoto, F. Hirose, K. Koike, A. Saito, S. Ohshima

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    8 Citations (Scopus)

    Abstract

    The a/c axes grain boundaries of YBCO films are very interesting from the viewpoints of Josephson junction technology and the magnetic flux pinning. In this paper, we intend to flow superconducting current along the grain boundary and to prevent the magnetic flux motion from passing across the grain boundary. The a/c axes grain boundaries were fabricated on SrLaGaO4 (100) substrates by pulsed laser deposition on Gd2CuO4 (GCO) buffer layers. The preferred orientation and in-plane orientation of the films were characterized by X-ray θ/2θ diffraction and φ-scan spectroscopy. 4-micrometer pitch GCO patterns were fabricated by a lithography technology. Subsequently, the YBCO films were deposited on the pattern. A TEM image showed that a-axis grains grew over c-axis grains.

    Original languageEnglish
    Pages (from-to)2935-2938
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume15
    Issue number2 PART III
    DOIs
    Publication statusPublished - Jun 2005

    All Science Journal Classification (ASJC) codes

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

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