尖晶石型CuM2S4(M=Co, Rh, Ir)族硫化物中,CuRh2S4为4.7K的超导体,CuIr2S4在230K经历金属-绝缘体相变, 用Zn替代Cu后可成为超导体,CuCo2S4是否具有超导电性目前仍有争议.本文研究了CuCo2S4及其掺杂体系的成相及其电、磁性质,表明单相CuCo2S4在1.8K以上不超导,而在Cu1+xCo2-xS4和CoS2的复相样品中观察到～3.5K的超导转变. 另外少量Zn替代Cu引入杂相,在样品中未能观察到超导电性.
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