The filamentary precursor (Nd0.33, Eu0.33, Gd0.33)1.18Ba2.12Cu3.09Ox was prepared by a solution spinning method, and partially melted in flowing 0.1%O2+Ar, and then oxygenated by two-step process. A high Jc value of 2.5×104 A/cm2 at 77 K and 0 T was obtained by controlling the heating conditions. The Jc value of the sample oxygenated under various conditions was measured at 77 K in fields up to 9 T. The field dependence of Jc was strongly dependent on the oxygenating conditions, and a high Jc value of about 1.0×104 A/cm2 at 77 K and 5 T was maintained.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering