SUPERCONDUCTING BEHAVIOR OF THE T/O STRUCTURAL TYPE PHASE LA2-XNDXCUO4+DELTA (0 LESS-THAN X LESS-THAN 0.60) UNDER OXIDIZING CONDITIONS

被引：17

作者：

ARROUY, F

WATTIAUX, A

CROS, C

DEMAZEAU, G

GRENIER, JC

POUCHARD, M

ETOURNEAU, J

机构：

[1] Laboratoire de Chimie du Solide, UPR, CNRS 8661, 33405 Talence Cedex

来源：

PHYSICA C | 1991年 / 175卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(91)90607-Z

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystallographic and analytical data relative to some compositions of the La(2-x)Nd(x)CuO4 solid solution, with the T/O type structure, prepared under 0.2 bar oxygen pressure, are reported. After a treatment under high oxygen pressure or electrochemical oxidation, a significant increase of the deviation from oxygen stoichiometry is observed for the phase of composition x = 0.30. For increasing values of delta, an evolution from a semiconducting to a superconducting behaviour has been evidenced (T(c) congruent-to 30 K) and confirmed by magnetic measurement.

引用

页码：342 / 346

页数：5

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