Fabrication of YBCO/PBCO/SrTiO_3/PBCO/YBCO Layered Structure for Superconductor-Insulator-Superconductor Tunnel-Type Josephson Junction
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概要
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The fabrication process of all-oxide layered structures of YBCO/PBCO/SrTiO_3/PBCO/YBCO on MgO(100) substrates for superconductor-insulator-superconductor (SIS) tunnel junctions was investigated by in situ rf magnetron sputtering. Fully c-axis-oriented structure was obtained by varying the sputtering conditions. The optimized structure had a well-defined interface at each boundary between layers. A planar junction was fabricated by the atomic milling technique, and Josephson supercurrent and microwave response were observed. Moreover, a structure resembling an energy gap was found by differential resistance measurement.
- 社団法人応用物理学会の論文
- 1993-09-15
著者
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Eikyu Katsumi
Research Center For Advanced Science And Technology The University Of Tokyo
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Kimura Hiroshi
Research Center for Advanced Science and Technology, The University of Tokyo
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Matsubara Gensoh
Research Center For Advanced Science And Technology The University Of Tokyo
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Okabe Yoichi
Research Center For Advanced Science And Technology The University Of Tokyo
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Miyazaki Masayuki
Research Center For Advanced Science And Technology The University Of Tokyo
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Kimura Hiroshi
Research Center For Advanced Science And Technology The University Of Tokyo
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