Fabrication of High T_c 2223 (Bi, Pb)SrCaCuO Single-Phase Films by Single-Target RF Magnetron Sputtering and Postannealing

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概要

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• Single-phase 2223 Bi(Pb)-Sr-Ca-Cu-O superconducting films with T_c_<zero> above 100 K were reproducibly obtainable by single-target (Bi_<20>Pb_3Sr_<16>Ca_<25>Cu_<36>O_z) rf magnetron sputtering on (100) MgO and postannealing. During annealing, the films were placed face-down on top of bulk material with different Pb contents. It was found that the optimal conditions for the annealing of 600-nm-thick films to obtain the aingle 2223 phase were 845℃ for 12 to 14 hours on top of bulk Bi_<19.5>Pb_<3.5>Sr_<22>Ca_<22>Cu_<33>O_z bulk. The thinner the film was, the shorter was the optimal annealing time, at the expense of broadened T_c transition.

• 社団法人応用物理学会の論文
• 1990-05-20

著者

• HUANG T.

  Department of Electronics Engineering, National Chiao Tung University

• Lin S.

  Department Of Chemical Engineering University Of Melbourne

• Huang T.

  Department Of Materials Engineering National Cheng Kung University

• TIEN C.

  Department of Physics, National Cheng Kung University

• CHIN T.

  Department of Materials Science and Engineering, National Tsing Hua University

• HUNG M.

  Department of Materials Engineering, National Cheng Kung University

• Chin T.

  Department Of Materials Science And Engineering National Tsing Hua University

• Hung M.

  Department Of Materials Engineering National Cheng Kung University

• Tien C.

  Department Of Physics National Cheng Kung University

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