Title :
Improved in-field behaviour of uranium doped BiSCCO tapes by enhanced flux pinning
Author :
Tönies, Susanne ; Weber, Harald W. ; Guo, Yuan C. ; Dou, Shi X. ; Sawh, Ravi ; Weinstein, Roy
Author_Institution :
Atomic Inst., Austrian Univ., Vienna, Austria
fDate :
3/1/2001 12:00:00 AM
Abstract :
Uranium doped BiSCCO 2223 tapes were irradiated by thermal neutrons. The resulting fission-induced defects improve flux pinning and shift the irreversibility line to higher fields. Significant enhancements of the transport critical current density as well as a reduction of the Jc-anisotropy are found for the irradiated samples. Furthermore, inter- and intragranular critical current densities were determined from the remanent magnetic moments by SQUID magnetometry
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); flux pinning; high-temperature superconductors; ion implantation; magnetisation; neutron effects; strontium compounds; superconducting tapes; uranium; Bi2Sr2Ca2Cu3O10 :U; Bi2Sr2Ca2Cu3O10 :U tapes; SQUID magnetometry; U doped BiSCCO 2223 tapes; enhanced flux pinning; fission-induced defects; flux pinning; high temperature superconductor; in-field behaviour; intergranular critical current densities; intragranular critical current densities; irreversibility line; remanent magnetic moments; thermal neutron irradiation; transport critical current density; Critical current; Critical current density; Current measurement; Educational institutions; Flux pinning; Grain boundaries; Granular superconductors; Magnetic field measurement; Magnetic moments; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
