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Flux Pinning Properties of a SmBa2Cu3O y Film Including High Number Density of BaHfO3 Nano-rods on LaAlO3 Substrate

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Abstract

Flux pinning properties of a BaHfO3 (BHO)-doped SmBa2Cu3O y (SmBCO) film, which was fabricated by pulsed laser deposition method adopting a seed layer technique, have been investigated. Nano-rods of the film were small in a diameter of 5.4 nm and had high number density (high-n) of 4,775/μm2. The flux pinning properties of the film were compared with a SmBCO film including BHO nano-rods with a larger diameter and a lower number density (low-n). At 65 K, the flux pinning force density of the high-n sample (105.0 GN/m3) showed much higher than that of the low-n sample (70.6 GN/m3).

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Acknowledgments

This work was partly supported by Grants-in-Aid for Scientific Research (Nos. 23226014, 19676005, and 25289358) from the Japan Society for the Promotion of Science (JSPS) and Research Foundation for the Electrotechnology of Chubu.

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Authors and Affiliations

  1. Department of Energy Engineering and Science, Nagoya University, Nagoya, 464-8603, Japan

    S. Miura, Y. Yoshida & Y. Ichino

  2. Department of Materials Science and Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan

    K. Matsumoto

  3. Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry, Yokosuka, 240-0196, Japan

    A. Ichinose

  4. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan

    S. Awaji

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  1. S. Miura
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  2. Y. Yoshida
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  3. Y. Ichino
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  4. K. Matsumoto
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  5. A. Ichinose
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  6. S. Awaji
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Correspondence to S. Miura.

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Miura, S., Yoshida, Y., Ichino, Y. et al. Flux Pinning Properties of a SmBa2Cu3O y Film Including High Number Density of BaHfO3 Nano-rods on LaAlO3 Substrate. J Supercond Nov Magn 28, 367–369 (2015). https://doi.org/10.1007/s10948-014-2754-2

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  • DOI: https://doi.org/10.1007/s10948-014-2754-2

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