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

doi:10.1109/TASC.2005.848653

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

Research output: Contribution to journal › Article

6 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 language	English
Pages (from-to)	2935-2938
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	15
Issue number	2 PART III
DOIs	https://doi.org/10.1109/TASC.2005.848653
Publication status	Published - Jun 1 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1109/TASC.2005.848653

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Shingai, Y., Mukaida, M., Ichinose, A., Horii, S., Yoshida, Y., Matsumoto, K., Hirose, F., Koike, K., Saito, A., & Ohshima, S. (2005). Fabrication of a/c axes oriented grain boundaries in YBCO films by selective growth. IEEE Transactions on Applied Superconductivity, 15(2 PART III), 2935-2938. https://doi.org/10.1109/TASC.2005.848653

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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.",

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AU - Shingai, Y.

AU - Mukaida, M.

AU - Ichinose, A.

AU - Horii, S.

AU - Yoshida, Y.

AU - Matsumoto, K.

AU - Hirose, F.

AU - Koike, K.

AU - Saito, A.

AU - Ohshima, S.

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AB - 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.

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