Title :
Critical current densities and activation energy of BiPbSrCaCuO tapes
Author :
Gladun, A. ; Fuchs, G. ; Fischer, K. ; Busch, D. ; Eujen, R. ; Huedepohl, J.
Author_Institution :
Inst. of Solid State & Mater. Res., Dresden, Germany
fDate :
3/1/1993 12:00:00 AM
Abstract :
The critical current density and the resistive transition curves of Ag-sheathed, textured (Bi/sub 1-x/Pb/sub x/)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/ tapes have been studied in magnetic fields up to 12 T. The results can be described by the modified flux creep model proposed by E. Zeldov et al. (1990). It is shown that this model yields a simple explanation for the exponential field dependence of the critical current density in high-temperature superconductors.<>
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); flux creep; high-temperature superconductors; lead compounds; silver; strontium compounds; (BiPb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/-Ag tapes; activation energy; critical current density; high temperature superconductor; modified flux creep model; resistive transition curves; Conductivity; Creep; Critical current; Critical current density; Current measurement; High temperature superconductors; Magnetic field measurement; Magnetic fields; Silver; Superconductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
