Irreversibility Behavior of Bi4Sr3Ca3Cu4O16 Roller-Splat Cooling Superconductors
Abstract
The irreversibility behavior of high-Tc superconductors of composition Bi4Sr3Ca3-Cu4O16 prepared by the roller-splat cooling method has been investigated. Magnetic measurements were performed in a strong magnetic field or liquid helium temperature. Magnetization hysteresis curves and minor hysteresis loops were obtained and, flux creep and flux trapping measurements carried out for polycrystalline bulk and powdered samples. The results of measurements were discussed and the flux creep parameters and the first penetration field value estimated.
- Publication:
-
Modern Physics Letters B
- Pub Date:
- 1993
- DOI:
- 10.1142/S0217984993000126
- Bibcode:
- 1993MPLB....7...91S