Electrical Properties and Superconductivity of MSr2Nd2-xCexCu2O10-δ (M = Ta, Nb)

Chin. Phys. Lett.

1992, Vol. 9

Issue (9): 498-500 DOI:

Original Articles

Electrical Properties and Superconductivity of MSr₂Nd_2-xCe_xCu₂O_10-δ (M = Ta, Nb)

ZHU Yingjie;QIAN Yitai;LI Rukang;WANG Shiwei;CHEN Zuyao;CHEN Zhaojia*;WANG Nanling*;ZHOU Guien**

Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026 *Department of Physics, University of Science and Technology of China, Hefei 230026 **Laboratory of Structure And Element Analysis, University of Science and Technology of China, Hefei 230026

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ZHU Yingjie, QIAN Yitai, LI Rukang et al 1992 Chin. Phys. Lett. 9 498-500

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Abstract A new series of layered cuprate compounds MSr₂Nd_2-xCe_xCu₂O_10-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 TaSr₂Nd_1.3Ce_0.7Cu₂O_10-δ has been observed at about 50K. For the sample of NbSr₂Nd_1.45Ce_0.55Cu₂O_10-δ, metal-like conductivity behaviour has been observed. We have found superconductivity at about 13.2K in the samples of NbSr₂Nd_2-xCe_xCu₂O_10-δ ( x= 0.49, 0.50, 0.51, 0.52).

Keywords: 74.70.Vy

Published: 01 September 1992

PACS:

74.70.Vy

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1992/V9/I9/0498

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	ZHU Yingjie
	QIAN Yitai
	LI Rukang
	WANG Shiwei
	CHEN Zuyao
	CHEN Zhaojia
	WANG Nanling
	ZHOU Guien

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