Influence of Carbon on Critical Temperatures of Superconducting Y–Ba–Cu–O

• Itoh Mineo

  Department of Electronic Engineering, Kinki University

• Ishigaki Hiroyuki

  Department of Mechanical Engineering, Kinki University

• Demizu Kei

  Osaka Prefectural Industrial Technology Research Institute

抄録

High T_c copper oxide superconductors, such as Y–Ba–Cu–O, commonly have a high chemical activity during sintering. Y–Ba–Cu–O superconductors are influenced by impurities in air, which cause degradation of the superconducting properties, critical current density (J_c) and temperature of zero resistance (T_c^zero). XPS analysis of low J_c and T_c^zero materials shows a presence of carbon in a higher amount compared to high J_c and T_c^zero materials. This paper shows that J_c and T_c^zero are very susceptible to impure gases in air.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 28 (9), L1527-L1530, 1989

  社団法人応用物理学会

キーワード

• Y–Ba–Cu–O thick film
• superconducting Y–Ba–Cu–O
• influence of carbon
• fabrication
• magnetic shield
• magnetic bearing
• sensing device

詳細情報

• CRID: 1570854177337053568
• NII論文ID: 110003927199
• NII書誌ID: AA10457675
• 本文言語コード: en
• データソース種別:
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