OXYGEN NONSTOICHIOMETRY AND HIGH-TEMPERATURE CONDUCTIVITY OF ND-CE-SR-CU-O SUPERCONDUCTING OXIDE

被引：6

作者：

IDEMOTO, Y

ITOH, Y

FUEKI, K

机构：

[1] Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, Noda-shi, Chiba, 278

来源：

PHYSICA C | 1992年 / 202卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90304-U

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dependence of T(c) on oxygen content was determined for (Nd0.669Ce0.136Sr0.195)2Cu0.974O4-delta. Superconduction appeared above an oxygen content of 3.985, and T(c) increased with increasing oxygen content. The oxygen nonstoichiometry and high-temperature conductivity were measured as functions of temperature and oxygen partial pressure. The conductivity increased with increase in excess oxygen content, but the relation between conductivity and excess oxygen content was independent of temperature. It was found from the relation that the mobility increases with increasing excess oxygen content and ranges from 0.1 to 0.3 cm2 V-1 s-1.

引用

页码：127 / 133

页数：7

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