Fabrication of Double-Sided YBa_2Cu_3O_7 Films on CeO_2-Buffered Sapphire Substrates by MOD Process

参考文献7件
  • SOHMA Mitsugu
    National Institute of Advanced Industrial Science and Technology (AIST)
  • KAMIYA Kunio
    National Institute of Advanced Industrial Science and Technology (AIST)
  • TSUKADA Kenichi
    National Institute of Advanced Industrial Science and Technology (AIST)
  • YAMAGUCHI Iwao
    National Institute of Advanced Industrial Science and Technology (AIST)
  • KONDO Wakichi
    National Institute of Advanced Industrial Science and Technology (AIST)
  • MIZUTA Susumu
    National Institute of Advanced Industrial Science and Technology (AIST)
  • MANABE Takaaki
    National Institute of Advanced Industrial Science and Technology (AIST)
  • KUMAGAI Toshiya
    National Institute of Advanced Industrial Science and Technology (AIST)

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抄録

Double-sided YBa_2Cu_3O_7 (YBCO) films were successfully prepared on 50-mm-diameter CeO_2-buffered sapphire substrates by metalorganic deposition (MOD) process using an acetylacetonate coating solution. Mapping analysis of superconducting current densities (J_c) at 77.3K revealed that J_c values of the double-sided films indicated in excess of 2 MA/cm^2 in the center parts with a small decrease of J_c at the outer side of the specimens. The J_c values of one side (A) are higher than those of the other side (B). Microwave surface resistance (R_s) of sides A and B of the film exhibited 0.57 and 0.60mΩ, respectively, at 70K (12GHz). The difference in the R_s values should be attributed to the slight difference in the J_c values, which arose from the surface morphology of the CeO_2 buffer layer and heat treatment conditions during the firing process in MOD.

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詳細情報 詳細情報について

  • CRID
    1570291227007976320
  • NII論文ID
    110004657601
  • NII書誌ID
    AA10826283
  • ISSN
    09168524
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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