EFFECTS OF PARTIAL SUBSTITUTION ON TC AND LOW-TEMPERATURE STRUCTURAL PHASE-TRANSITION IN LA2-XBAXCUO4

被引：6

作者：

KOIKE, Y ^{[1
]}

KAWAGUCHI, T ^{[1
]}

HOSOYA, S ^{[1
]}

WATANABE, N ^{[1
]}

NOJI, T ^{[1
]}

SAITO, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91619-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Effects of partial substitution on the local minimum of T(c) near x = 0.125 and on the resistance anomaly relating to the low-temperature structural phase transition have been investigated in La2-xBaxCuO4. The local minimum shifts to x = 0.145 in La1.98-xCe0.02BaxCuO4. The range of x, where the resistance anomaly appears, shifts to that of larger x values, too. These suggest that the structural phase transition is due to the optimum hole concentration of 0.125 per Cu atom rather than the Ba content x = 0.125. Experiments for La1.98-xK0.02BaxCuO4 are also described.

引用

页码：791 / 792

页数：2

共 5 条

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PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1990, 170 (5-6) :411-415

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