SUPPRESSION OF SUPERCONDUCTIVITY IN ORTHORHOMBIC LA(2-X)M(X)CUO(4) (M=CA,SR)

被引：2
|
作者：
DABROWSKI, B [1 ]
JORGENSEN, JD [1 ]
HITTERMAN, RL [1 ]
WAGNER, JL [1 ]
WANG, Z [1 ]
HUNTER, BA [1 ]
RADAELLI, PG [1 ]
HINKS, DG [1 ]
机构：
[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439
来源：
PHYSICA C | 1994年 / 235卷
关键词：
D O I：
10.1016/0921-4534(94)91393-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have extended the calcium sold-solubility limit in La2-xCaxCuO4 to x = 0.2 using synthesis at high oxygen pressure. The superconducting transition temperature increases with doping to 34 K at x = 0.15 and is suppressed for x > 0.15, similar to the Sr-substituted material. At a fixed doping level, the optimum superconducting properties (the highest T-c) ate found for flat and square CuO2 planes.
引用
收藏
页码：339 / 340
页数：2
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