Pressure dependence of Bi-Sr-Ca-Cu-O phases with laser deposition technique
Abstract
Superconducting Bi2Sr2Can-1CunOx (n=1,2,3) films, with the c-axis perpendicular to the films, were fabricated by laser deposition. Oxygen pressure was found to be important to control the phases, and a unique pressure dependence of Bi-Sr-Ca-Cu-O phases was shown by these films. Tc of 76 K and Jc of 1.5×105 A/cm2 at 40 K were achieved for the in situ Bi2Sr2CaCu2Ox film. The critical-current densities in the external magnetic field up to 5 T with the fields parallel and perpendicular to the c-axis of the film were measured.
- Publication:
-
Applied Physics Letters
- Pub Date:
- December 1991
- DOI:
- 10.1063/1.105753
- Bibcode:
- 1991ApPhL..59.3180N
- Keywords:
-
- Bismuth;
- Copper Oxides;
- High Temperature Superconductors;
- Laser Applications;
- Superconducting Films;
- Epitaxy;
- Pressure Effects;
- Solid Phases;
- Solid-State Physics