EFFECTS OF OXYGEN DEFICIENCY AND SUBSTITUTION FOR COPPER IN ND2-XCEXCUO4-DELTA

被引：9

作者：

KOIKE, Y

KAKIMOTO, A

YOSHIDA, M

INUZUKA, H

NOJI, T

SAITO, Y

机构：

[1] Department of Applied Physics, Faculty of Engineering, Tohoku University, Sendai, 980, Aramaki Aoba, Aoba-ku

来源：

PHYSICA B | 1990年 / 165卷

关键词：

D O I：

10.1016/S0921-4526(09)80418-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Effects of oxygen deficiency on the superconductivity in Nd2-xCexCuO4-δ have been systematically investigated. The value of Tc strongly depends on x and δ. Over-reduction is found to decrease Tc because of randomness and/or over-doping of carriers. Effects of partial substitution of Ni, Zn and Ga for Cu have been also studied. The Ni substitution markedly decreases Tc , while the Ga substitution does not. This is discussed relating to the antiferromagnetic phase transition in samples with smaller x. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.

引用

页码：1665 / 1666

页数：2

共 4 条

[1] SUCCESSIVE MAGNETIC PHASE-TRANSITIONS IN ND2CUO4 [J].