CRYSTAL-STRUCTURE AND SUPERCONDUCTIVITY OF NEW PB-BASED 1222-CUPRATE (PB0.5CD0.5)(SR0.9EU0.1)(2)(EU0.7CE0.3)(2)CU2O9+DELTA

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	CRYSTAL-STRUCTURE AND SUPERCONDUCTIVITY OF NEW PB-BASED 1222-CUPRATE (PB0.5CD0.5)(SR0.9EU0.1)(2)(EU0.7CE0.3)(2)CU2O9+DELTA
	MIN, JR ; LIANG, JK ; WANG, C ; WU, F ; CHEN, H ; DONG, C ; RAO, GH
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	1995
卷号	7 期号:30 页码:5975
ISSN号	0953-8984
通讯作者	MIN, JR: CHINESE ACAD SCI,INST PHYS,BEIJING 100080,PEOPLES R CHINA.
中文摘要	A new superconductor (Pb0.5Cd0.5)(Sr0.9Eu0.1)(2)(Eu0.7Ce0.3)(2)Cu2O9+delta has been prepared. The compound has higher T-c values when it is synthesized in Oz than in air. Besides, the O-2-synthesized sample exhibits metallic behaviour, while the air-synthesized sample exhibits semiconducting behaviour in their normal state. It has a typical metal-insulator transition with the increase of the carrier concentration, which is proven by our calculation results of the bond valence sums of the Cu ions in the conducting CuO2 planes. (Pb0.5Cu0.5)(Sr7/8Eu1/8)2(Eu3/4Ce1/4)2Cu(2)O(9) is an analogous compound of (Pb,Cd)-1222. (Pb,Cd)-1222 has higher superconducting transition temperatures than (Pb,Cu)-1222. This difference can be explained from the viewpoint of charge transfer between the charge reservoir (Pb,Cu)O layers and the conducting CuO2 planes. The crystal structure of (Pb0.5Cd0.5)(Sr(0.9)Eu0. I)(2)(Eu0.7Ce0.3)(2)Cu2O9+delta has been refined by the Rietveld method. The refinement results indicate that both (Pb, Cd) and O(3) in the (Pb, Cd)O layer are displaced from their ideal sites.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35484]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	MIN, JR,LIANG, JK,WANG, C,et al. CRYSTAL-STRUCTURE AND SUPERCONDUCTIVITY OF NEW PB-BASED 1222-CUPRATE (PB0.5CD0.5)(SR0.9EU0.1)(2)(EU0.7CE0.3)(2)CU2O9+DELTA[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1995,7(30):5975.
APA	MIN, JR.,LIANG, JK.,WANG, C.,WU, F.,CHEN, H.,...&RAO, GH.(1995).CRYSTAL-STRUCTURE AND SUPERCONDUCTIVITY OF NEW PB-BASED 1222-CUPRATE (PB0.5CD0.5)(SR0.9EU0.1)(2)(EU0.7CE0.3)(2)CU2O9+DELTA.JOURNAL OF PHYSICS-CONDENSED MATTER,7(30),5975.
MLA	MIN, JR,et al."CRYSTAL-STRUCTURE AND SUPERCONDUCTIVITY OF NEW PB-BASED 1222-CUPRATE (PB0.5CD0.5)(SR0.9EU0.1)(2)(EU0.7CE0.3)(2)CU2O9+DELTA".JOURNAL OF PHYSICS-CONDENSED MATTER 7.30(1995):5975.