在迄今为止所发现的钇系列、钡系列和铋系列的高温超导材料中,铜都是不可缺少的成分,并且被认为是超导机制的重要因素。我校烧制的十七种超导材料中“钇、锶、钛、氧”,(Y—Sr—Ti—O)出现了液氮温区的抗磁性,打破了铜是不可缺少的成分的传统观点,这是一项非常重要的发现。 Copper has been an indispensable component in the high-temperature superconducting materials of the yttrium series, barium series and bismuth series hitherto found, and is considered as an important factor in the superconducting mechanism. Among the seventeen superconducting materials fired by our university, “yttrium, strontium, titanium, oxygen”, (Y-Sr-Ti-O) appear diamagnetism in the liquid nitrogen temperature zone, breaking the indispensable component of copper The traditional view, this is a very important discovery.