Recently, superconductivity with surprisingly high Tc·s above 90K has been reported in the Ba-Y-Cu-O ternary-oxide system. This ternary-oxide system is an oxygen defect compound that usually consists of three or ...Recently, superconductivity with surprisingly high Tc·s above 90K has been reported in the Ba-Y-Cu-O ternary-oxide system. This ternary-oxide system is an oxygen defect compound that usually consists of three or more phases. In order to obtain a stoichiometric or a near stoichiometric compound, we introduce Nb2O5 as a constituent into the展开更多
文摘Recently, superconductivity with surprisingly high Tc·s above 90K has been reported in the Ba-Y-Cu-O ternary-oxide system. This ternary-oxide system is an oxygen defect compound that usually consists of three or more phases. In order to obtain a stoichiometric or a near stoichiometric compound, we introduce Nb2O5 as a constituent into the
