论文部分内容阅读
最近,在Ba-Y-Cu-O三元氧化物系中不断发现了90K以上的超导电性。这种三元氧化物系是一种氧缺陷化合物,通常包含有三个或者更多的相。为了得到化学比的或接近化学比的化合物,我们在Ba-Y-Cu-O三元氧化物系中掺入Nb_2O_5来补偿氧空位,从而形成
Recently, more than 90 K of superconductivity has been continuously found in the Ba-Y-Cu-O ternary oxide system. This ternary oxide is an oxygen-deficient compound that usually contains three or more phases. In order to obtain the chemical ratio or near the chemical ratio of the compounds, we Ba-Y-Cu-O ternary oxide system doped Nb 2 O 5 to compensate oxygen vacancies to form