Title :
Effect of Mn Addition on In-Field Behavior of IBAD/MOCVD Gd-YBCO Second Generation HTS Tapes
Author :
Mensah, Robert Joseph ; Majkic, Goran ; Chen, Yimin ; Selvamanickam, Venkat ; Putman, Philip ; Salama, Kamel
Author_Institution :
Dept. of Mech. Eng., Univ. of Houston, Houston, TX, USA
fDate :
6/1/2009 12:00:00 AM
Abstract :
We analyze the effect of Mn addition to Gd-substituted YBa2Cu3O7-delta(YBCO) on transport current and behavior under applied magnetic field. The high-temperature superconducting tapes were manufactured by ion-beam assisted deposition and metal organic chemical vapor deposition on hastelloy substrates. The field dependence measurements as a function of Mn concentration were performed in applied magnetic fields up to 1.5 T at 77 K. The dependence of critical current on the field angle was measured in the plane perpendicular to the sample longitudinal axis (current axis). The effect of Mn concentration on critical temperature is also reported. The results are characterized and discussed.
Keywords :
MOCVD; barium compounds; critical currents; doping; gadolinium; high-temperature superconductors; ion beam assisted deposition; manganese; superconducting tapes; superconducting transition temperature; yttrium compounds; MnxGd0.65Y0.65Ba2Cu3O7-delta; applied magnetic field; coated conductors; critical current; critical temperature; doping; hastelloy substrates; ion-beam assisted deposition; magnetic flux density 1.5 T; metal organic chemical vapor deposition; second generation high-temperature superconducting tapes; temperature 77 K; transport current behavior; Coated conductors; Gd substitution; Mn doping; YBCO; high-temperature superconductors (HTS); magnetic field behavior; transport current;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2018262
