Critical current behavior in the Sb2O3‐doped YBa2Cu3O7−δ superconductor

  title={Critical current behavior in the Sb2O3‐doped YBa2Cu3O7−δ superconductor},
  author={Sungho Jin and Thomas Henry Tiefel and R. A. Fastnacht and Guenther Wilhelm Kammlott},
The effect of Sb2O3 doping on Tc and Jc behavior of the polycrystalline YBa2Cu3O7−δ superconductor has been studied. While the overall Jc remained relatively low, the addition of a small amount of Sb2O3 (e.g., 0.5 wt %) noticeably improved transport Jc at 77 K by a factor of ∼6 at H=0 and of ∼80 at H=200 Oe. The magnetization hysteresis (ΔM) at H=0.9 T also increased by a factor of ∼3. The Jc improvement, which occurs in spite of the increased porosity, reduced grain size, and slightly… CONTINUE READING