DEPRESSION OF T-C CAUSED BY ND+3 PAIR-BREAKING IN NDBA2CU3OX

被引：10

作者：

BLACKSTEAD, HA ^{[1
]}

DOW, JD ^{[1
]}

PACKARD, WE ^{[1
]}

PULLING, DB ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,DEPT PHYS & ASTRON,TEMPE,AZ 85287

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91906-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The (Rare-earth)Ba2Cu3Ox materials are high-temperature superconductors, regardless of the moment J of the rare-earth ion, provided it is in the +3 valence state. Doping of the Ba-site of NdBa2Cu3Ox with J=0 La+3 has only a minor effect on the superconductivity, while J=9/2 Nd+3 on the Ba-site breaks pairs and destroys superconductivity. The facts that (i) Nd+3 between the cuprate planes has almost no effect and (ii) Nd+3 between a plane and a chain destroys superconductivity indicate that the superconductivity originates in the chain layers.

引用

页码：1363 / 1364

页数：2

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