Phase formation and superconductivity in sputtered Pb-based cuprate thin films

✍ Scribed by H. Adachi; S. Adachi; Y. Ichikawa; K. Setsune; K. Wasa

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 365 KB
• Volume: 185-189
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)91118-n

✦ Synopsis

Phase formation in Pb-based cuprate thin films has been investigated for a search for new phases. Thin films of Pb-Sr-M-Ca-Cu-O (M= Ln, Bi, Sb, Ru, Sn, In) were prepared by rf-magnetron sputtering on MgO substrates. When M is rare-earth element (Ln) and Bi, c-axis oriented films of Pb-based cuprates were fabricated. The attempt to create a novel crystal structure in the sputtered film was carried out by increasing Ca and Cu contents, and new phases of Pb-cuprates with multiplied CuO 2 planes in the unit cell were fabricated as a intergrowth structure.