Structure and Superconducting Properties of TlCa<SUB><I>n</I>−1</SUB>Ba<SUB>2</SUB>Cu<I><SUB>n</SUB></I>O<SUB>2<I>n</I>+3</SUB> Thin Films with Zero Resistance at Temperatures above 100 K

• Huang T. C.

  IBM Research Division, Almaden Research Center

• Lee W. Y.

  IBM Research Division, Almaden Research Center

• Lee V. Y.

  IBM Research Division, Almaden Research Center

• Karimi R.

  IBM Research Division, Almaden Research Center

抄録

New superconducting TlCa_n−1Ba₂Cu_nO_2n+3 thin films have been analyzed by the X-ray diffraction and four-point probe techniques. The films consist mainly of a single TlCa₂Ba₂Cu₃O₉ phase or a mixture of the TlCa₂Ba₂O₉ and TlCaBa₂Cu₂O₇ phases with the c-axis preferentially oriented perpendicular to the film surface. The TlCa₂Ba₂Cu₃O₉ film grown on an asymmetrically cut yttrium-stabilized ZrO₂ (YSZ) substrate has the highest superconducting transition with on-set T_c near 120 K and zero resistance at 116 K. The TlCa₂Ba₂Cu₃O₉ film deposited on a SrTiO₃ (100) substrate has a slightly lower transition with zero resistance at 104 K probably because of stacking faults. The film composed of both the TlCa₂Ba₂Cu₃O₉ and TlCaBa₂Cu₂O₇ phases and grown on YSZ has a double transition with on-set T_c near 118 K and 107 K, and zero resistance at 102 K.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 27 (8), L1498-L1500, 1988

  社団法人応用物理学会

キーワード

• Tl–Ca–Ba–Cu–O
• high <I>T</I><SUB>c</SUB> superconductors
• sputtered thin films
• X-ray diffraction
• superconductivity

詳細情報

• CRID: 1573950402209395712
• NII論文ID: 110003958712
• NII書誌ID: AA10650595
• ISSN: 00214922
• Web Site: https://jlc.jst.go.jp/DN/JALC/00337522800?from=CiNii
• 本文言語コード: en
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