Preparation of Superconductive (Bi, Pb)-Sr-Ca-Cu-O Thick Films by Rapid Quenching
Abstract
High-Tc superconductive thick films in the (Bi, Pb)-Sr-Ca-Cu-O system were prepared by rapid quenching. The asquenched film was amorphouslike and after annealing at 840°C, it showed superconductivity. The high-Tc phase of the film increased with the increase of the annealing time. The thick films annealed at 840°C for 300 h showed superconductivity with Tc(zero){=}104 K and Jc{=}200 A/cm2 at 77 K.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- April 1989
- DOI:
- 10.1143/JJAP.28.L612
- Bibcode:
- 1989JaJAP..28L.612S
- Keywords:
-
- Annealing;
- Bismuth Oxides;
- Copper Oxides;
- High Temperature Superconductors;
- Superconducting Films;
- Thick Films;
- Calcium Oxides;
- Crystal Structure;
- Electrical Resistivity;
- Lead Oxides;
- Rapid Quenching (Metallurgy);
- Strontium Compounds;
- Solid-State Physics