Higher critical current density achieved in Bi-2223 High-Tc superconductors

Publication date: Available online 6 May 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): M.S. Shalaby, H.M. Hashem, T.R. Hammad, L.A. Wahab, K.H. Marzouk, S. Soltan Bi2Sr2Ca2Cu3Ox (Bi-2223) were prepared using a solid state reaction method at different sintering times and temperatures. Structural phase identifications have been done using X-Ray analysis and refinement by Reitveld method which proves the coexistence of Bi-2223 and Bi-2212 phases. The critical transition temperature Tc and critical current density Jc values were measured using superconducting quantum interference device magnetometer (SQUID) and by the magneto-optics technique. A remarkable rapid decrease to the diamagnetic signal in the magnetization versus temperature M(T) at 110 K and Jc around 1.2 × 107 A/m2 at 5 K are confirmed for the Bi-2223 compound.

Source: Journal of Radiation Research and Applied Sciences - May 12, 2016 Category: Physics Source Type: research