THE EFFECTS OF CHEMICAL SUBSTITUTIONS ON THE (PB, CD)-1212 SUPERCONDUCTING CUPRATES

IMR OpenIR

	THE EFFECTS OF CHEMICAL SUBSTITUTIONS ON THE (PB, CD)-1212 SUPERCONDUCTING CUPRATES
	J. R. Min; J. K. Liang; X. L. Chen; C. Wang; C. Dong; G. H. Rao
	1994
发表期刊	Physica C-Superconductivity and Its Applications
ISSN	0921-4534
卷号	229 期号:1-2 页码:169-176
摘要	The effects of different substitutions on (Pb0.5Cd0.5)Sr2(Y0.5Ca0.5)Cu2O7 have been investigated. For (Pb0.5Cd0.5)Sr2(Y1-xCax)Cu2O7 (0.0 less-than-or-equal-to x less-than-or-equal-to 1.0), an anomalous variation of lattice constants with x is observed, and a sharp increase in T(c) occurs when x increases from 0.4 to 0.5. For (Pb0.5Cd0.5)Sr2-y(Y0.5+yCa0.5)Cu2O, (-0.2 less-than-or-equal-to y less-than-or-equal-to 0.3), as yttrium content increases the phase purity increases, and both the a and c lattice constants decrease. The superconducting properties deteriorate as y deviates from 0.0. For (Pb0.5Cd0.5)Sr2-z(Y0.5Ca0.5+z)Cu2O7 (-0.2 less-than-or-equal-to z less-than-or-equal-to 0.2), both the a and c lattice constants decrease as z increases. The superconducting properties deteriorate as z deviates from 0.0, although the effect is very small. From the T(c) results obtained in the three series, the conclusion can be reached that the yttrium content in the (Y, Ca) sites is a key factor in controlling the superconducting properties of the (Pb, Cd)- 1 212 phase.
部门归属	acad sinica,int ctr mat phys,shenyang 110015,peoples r china. ccast,world lab,beijing 100080,peoples r china. chinese acad sci,inst phys,natl lab supercond,beijing 100080,peoples r china.;min, jr (reprint author), chinese acad sci,inst phys,beijing 100080,peoples r china
关键词	Cu-o System Family Oxygen Ca Optimization Temperature Transition Oxides 70-k
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38899
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. R. Min,J. K. Liang,X. L. Chen,et al. THE EFFECTS OF CHEMICAL SUBSTITUTIONS ON THE (PB, CD)-1212 SUPERCONDUCTING CUPRATES[J]. Physica C-Superconductivity and Its Applications,1994,229(1-2):169-176.
APA	J. R. Min,J. K. Liang,X. L. Chen,C. Wang,C. Dong,&G. H. Rao.(1994).THE EFFECTS OF CHEMICAL SUBSTITUTIONS ON THE (PB, CD)-1212 SUPERCONDUCTING CUPRATES.Physica C-Superconductivity and Its Applications,229(1-2),169-176.
MLA	J. R. Min,et al."THE EFFECTS OF CHEMICAL SUBSTITUTIONS ON THE (PB, CD)-1212 SUPERCONDUCTING CUPRATES".Physica C-Superconductivity and Its Applications 229.1-2(1994):169-176.