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最近在Y-Ba-Cu-O氧化物中90K以上的超导电性的发现,在此领域内引起了多方面的广泛研究。本文报道了我们对北京大学小组制备的高T_c氧化物超导样品热电势测量的一个典型结果。
The recent discovery of superconductivity of more than 90K in Y-Ba-Cu-O oxides has led to extensive research in this area in many aspects. This paper reports a typical result of our thermoelectric measurements of high T_c oxide superconductors prepared by the Peking University team.