Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)
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Abstract
A new series of layered cuprate compounds MSr2Nd2-xCexCu2O10-δ (M = Ta,Nb) have been synthesized. The structure of the compounds is similar to that of Tl-1222. A peak in the R-T curve for the sample of TaSr2Nd1.3Ce0.7Cu2O10-δ has been observed at about 50K. For the sample of NbSr2Nd1.45Ce0.55Cu2O10-δ, metal-like conductivity behaviour has been observed. We have found superconductivity at about 13.2K in the samples of NbSr2Nd2-xCexCu2O10-δ ( x= 0.49, 0.50, 0.51, 0.52).
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ZHU Yingjie, QIAN Yitai, LI Rukang, WANG Shiwei, CHEN Zuyao, CHEN Zhaojia, WANG Nanling, ZHOU Guien. Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)[J]. Chin. Phys. Lett., 1992, 9(9): 498-500.
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ZHU Yingjie, QIAN Yitai, LI Rukang, WANG Shiwei, CHEN Zuyao, CHEN Zhaojia, WANG Nanling, ZHOU Guien. Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)[J]. Chin. Phys. Lett., 1992, 9(9): 498-500.
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ZHU Yingjie, QIAN Yitai, LI Rukang, WANG Shiwei, CHEN Zuyao, CHEN Zhaojia, WANG Nanling, ZHOU Guien. Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)[J]. Chin. Phys. Lett., 1992, 9(9): 498-500.
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ZHU Yingjie, QIAN Yitai, LI Rukang, WANG Shiwei, CHEN Zuyao, CHEN Zhaojia, WANG Nanling, ZHOU Guien. Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)[J]. Chin. Phys. Lett., 1992, 9(9): 498-500.
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